Use StrictTypeChecking for methods on CRC2D that accepts Path2D

This moves the null-check out into generated bindings code. Since there's
no longer a need to throw (explicitly) the ExceptionState argument can be
dropped from the signatures.

Review URL: https://codereview.chromium.org/232913004

git-svn-id: svn://svn.chromium.org/blink/trunk@171471 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/fast/canvas/canvas-isPointInPath-winding-expected.txt

@@ -30,12 +30,12 @@ PASS ctx.isPointInPath(path, 50, 50, 'gazonk') threw exception TypeError: Failed
 PASS ctx.isPointInPath(50, 50, 'gazonk') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': parameter 3 ('gazonk') is not a valid enum value..
 
 Testing null isPointInPath with Path object
-PASS ctx.isPointInPath(null, 50, 50) threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.isPointInPath(null, 50, 50, 'nonzero') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.isPointInPath(null, 50, 50, 'evenodd') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.isPointInPath(path, 50, 50) threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.isPointInPath(path, 50, 50, 'nonzero') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.isPointInPath(path, 50, 50, 'evenodd') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.isPointInPath(null, 50, 50) threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': parameter 3 ('50') is not a valid enum value..
+PASS ctx.isPointInPath(null, 50, 50, 'nonzero') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
+PASS ctx.isPointInPath(null, 50, 50, 'evenodd') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
+PASS ctx.isPointInPath(path, 50, 50) threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': parameter 3 ('50') is not a valid enum value..
+PASS ctx.isPointInPath(path, 50, 50, 'nonzero') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
+PASS ctx.isPointInPath(path, 50, 50, 'evenodd') threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 
 Testing invalid type isPointInPath with Path object
 PASS ctx.isPointInPath([], 50, 50) threw exception TypeError: Failed to execute 'isPointInPath' on 'CanvasRenderingContext2D': parameter 3 ('50') is not a valid enum value..

third_party/WebKit/LayoutTests/fast/canvas/canvas-isPointInStroke-with-path-expected.txt

@@ -24,7 +24,7 @@ PASS ctx.isPointInStroke(path,NaN,122) is false
 PASS ctx.isPointInStroke(path,18,NaN) is false
 
 Check null and invalid type
-PASS ctx.isPointInStroke(null,70,20) threw exception TypeError: Failed to execute 'isPointInStroke' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.isPointInStroke(null,70,20) threw exception TypeError: Failed to execute 'isPointInStroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.isPointInStroke([],20,70) threw exception TypeError: Failed to execute 'isPointInStroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.isPointInStroke({},120,70) threw exception TypeError: Failed to execute 'isPointInStroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 

third_party/WebKit/LayoutTests/fast/canvas/canvas-path-addpath-expected.txt

@@ -22,6 +22,8 @@ PASS imgdata[6] is 0
 PASS imgdata[7] is not 255
 
 Test addPath() with transform as null or invalid type.
+PASS p7.addPath(p8, []) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': parameter 2 is not of type 'SVGMatrix'..
+PASS p7.addPath(p8, {}) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': parameter 2 is not of type 'SVGMatrix'..
 PASS imgdata[4] is 255
 PASS imgdata[5] is 0
 PASS imgdata[6] is 0
@@ -34,9 +36,9 @@ PASS imgdata[2] is 0
 PASS imgdata[3] is 255
 
 Test addPath() with path as null and invalid type
-PASS p7.addPath(null, m) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': The 1st argument provided is either null, or an invalid Path object..
-PASS p7.addPath([], m) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': The 1st argument provided is either null, or an invalid Path object..
-PASS p7.addPath({}, m) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': The 1st argument provided is either null, or an invalid Path object..
+PASS p7.addPath(null, m) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': parameter 1 is not of type 'Path2D'..
+PASS p7.addPath([], m) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': parameter 1 is not of type 'Path2D'..
+PASS p7.addPath({}, m) threw exception TypeError: Failed to execute 'addPath' on 'Path2D': parameter 1 is not of type 'Path2D'..
 
 PASS successfullyParsed is true
 

third_party/WebKit/LayoutTests/fast/canvas/canvas-path-context-clip-expected.txt

@@ -39,12 +39,12 @@ PASS pixelDataAtPoint()[1] is within 5 of 0
 PASS pixelDataAtPoint()[2] is within 5 of 0
 PASS pixelDataAtPoint()[3] is within 5 of 255
 
-PASS ctx.clip(null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.clip(null, null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': parameter 2 ('null') is not a valid enum value..
-PASS ctx.clip(null, 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.clip(null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': parameter 1 ('null') is not a valid enum value..
+PASS ctx.clip(null, null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
+PASS ctx.clip(null, 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip([], 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip({}, 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
-PASS ctx.clip(null, 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.clip(null, 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip([], 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip({}, 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip('gazonk') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': parameter 1 ('gazonk') is not a valid enum value..

third_party/WebKit/LayoutTests/fast/canvas/canvas-path-context-fill-expected.txt

@@ -39,12 +39,12 @@ PASS pixelDataAtPoint()[1] is within 5 of 0
 PASS pixelDataAtPoint()[2] is within 5 of 0
 PASS pixelDataAtPoint()[3] is within 5 of 255
 
-PASS ctx.fill(null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.fill(null, null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': parameter 2 ('null') is not a valid enum value..
-PASS ctx.fill(null, 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.fill(null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': parameter 1 ('null') is not a valid enum value..
+PASS ctx.fill(null, null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
+PASS ctx.fill(null, 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill([], 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill({}, 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
-PASS ctx.fill(null, 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.fill(null, 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill([], 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill({}, 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill('gazonk') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': parameter 1 ('gazonk') is not a valid enum value..

third_party/WebKit/LayoutTests/fast/canvas/canvas-path-context-stroke-expected.txt

@@ -15,7 +15,7 @@ PASS pixelDataAtPoint()[0] is within 5 of 0
 PASS pixelDataAtPoint()[1] is within 5 of 255
 PASS pixelDataAtPoint()[2] is within 5 of 0
 PASS pixelDataAtPoint()[3] is within 5 of 255
-PASS ctx.stroke(null) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.stroke(null) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.stroke([]) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.stroke({}) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS successfullyParsed is true

third_party/WebKit/LayoutTests/fast/canvas/canvas-scroll-path-into-view-expected.txt

@@ -92,7 +92,7 @@ PASS testValue is 1160
 PASS testValue is 660
 
 Test case 5: exceptions
-PASS context.scrollPathIntoView(null); threw exception TypeError: Failed to execute 'scrollPathIntoView' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path2D object..
+PASS context.scrollPathIntoView(null); threw exception TypeError: Failed to execute 'scrollPathIntoView' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS context.scrollPathIntoView([]); threw exception TypeError: Failed to execute 'scrollPathIntoView' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS context.scrollPathIntoView({}); threw exception TypeError: Failed to execute 'scrollPathIntoView' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 

third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-path-addpath.js

@@ -74,8 +74,8 @@ p7.rect(0,0,100,100);
 var p8 = new Path2D();
 p8.rect(100,100,100,100);
 p7.addPath(p8, null);
-p7.addPath(p8, []);
-p7.addPath(p8, {});
+shouldThrow("p7.addPath(p8, [])");
+shouldThrow("p7.addPath(p8, {})");
 ctx.fillStyle = 'red';
 ctx.currentPath = p7;
 ctx.fill();

third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/canvas-path-context-clip-expected.txt

@@ -39,12 +39,12 @@ PASS pixelDataAtPoint()[1] is within 5 of 0
 PASS pixelDataAtPoint()[2] is within 5 of 0
 PASS pixelDataAtPoint()[3] is within 5 of 255
 
-PASS ctx.clip(null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.clip(null, null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': parameter 2 ('null') is not a valid enum value..
-PASS ctx.clip(null, 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.clip(null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': parameter 1 ('null') is not a valid enum value..
+PASS ctx.clip(null, null) threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
+PASS ctx.clip(null, 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip([], 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip({}, 'nonzero') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
-PASS ctx.clip(null, 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.clip(null, 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip([], 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip({}, 'evenodd') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.clip('gazonk') threw exception TypeError: Failed to execute 'clip' on 'CanvasRenderingContext2D': parameter 1 ('gazonk') is not a valid enum value..

third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/canvas-path-context-fill-expected.txt

@@ -39,12 +39,12 @@ PASS pixelDataAtPoint()[1] is within 5 of 0
 PASS pixelDataAtPoint()[2] is within 5 of 0
 PASS pixelDataAtPoint()[3] is within 5 of 255
 
-PASS ctx.fill(null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
-PASS ctx.fill(null, null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': parameter 2 ('null') is not a valid enum value..
-PASS ctx.fill(null, 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.fill(null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': parameter 1 ('null') is not a valid enum value..
+PASS ctx.fill(null, null) threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
+PASS ctx.fill(null, 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill([], 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill({}, 'nonzero') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
-PASS ctx.fill(null, 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.fill(null, 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill([], 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill({}, 'evenodd') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.fill('gazonk') threw exception TypeError: Failed to execute 'fill' on 'CanvasRenderingContext2D': parameter 1 ('gazonk') is not a valid enum value..

third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/canvas-path-context-stroke-expected.txt

@@ -15,7 +15,7 @@ PASS pixelDataAtPoint()[0] is within 5 of 0
 PASS pixelDataAtPoint()[1] is within 5 of 255
 PASS pixelDataAtPoint()[2] is within 5 of 0
 PASS pixelDataAtPoint()[3] is within 5 of 255
-PASS ctx.stroke(null) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': The 1st argument provided is either null, or an invalid Path object..
+PASS ctx.stroke(null) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.stroke([]) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS ctx.stroke({}) threw exception TypeError: Failed to execute 'stroke' on 'CanvasRenderingContext2D': No function was found that matched the signature provided..
 PASS successfullyParsed is true

third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext2D.cpp

@@ -1024,18 +1024,13 @@ void CanvasRenderingContext2D::fill(const String& windingRuleString)
     fillInternal(m_path, windingRuleString);
 }
 
-void CanvasRenderingContext2D::fill(Path2D* domPath, ExceptionState& exceptionState)
+void CanvasRenderingContext2D::fill(Path2D* domPath)
 {
-    fill(domPath, "nonzero", exceptionState);
+    fill(domPath, "nonzero");
 }
 
-void CanvasRenderingContext2D::fill(Path2D* domPath, const String& windingRuleString, ExceptionState& exceptionState)
+void CanvasRenderingContext2D::fill(Path2D* domPath, const String& windingRuleString)
 {
-    if (!domPath) {
-        exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "Path"));
-        return;
-    }
-
     fillInternal(domPath->path(), windingRuleString);
 }
 
@@ -1084,13 +1079,8 @@ void CanvasRenderingContext2D::stroke()
     strokeInternal(m_path);
 }
 
-void CanvasRenderingContext2D::stroke(Path2D* domPath, ExceptionState& exceptionState)
+void CanvasRenderingContext2D::stroke(Path2D* domPath)
 {
-    if (!domPath) {
-        exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "Path"));
-        return;
-    }
-
     strokeInternal(domPath->path());
 }
 
@@ -1113,18 +1103,13 @@ void CanvasRenderingContext2D::clip(const String& windingRuleString)
     clipInternal(m_path, windingRuleString);
 }
 
-void CanvasRenderingContext2D::clip(Path2D* domPath, ExceptionState& exceptionState)
+void CanvasRenderingContext2D::clip(Path2D* domPath)
 {
-    clip(domPath, "nonzero", exceptionState);
+    clip(domPath, "nonzero");
 }
 
-void CanvasRenderingContext2D::clip(Path2D* domPath, const String& windingRuleString, ExceptionState& exceptionState)
+void CanvasRenderingContext2D::clip(Path2D* domPath, const String& windingRuleString)
 {
-    if (!domPath) {
-        exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "Path"));
-        return;
-    }
-
     clipInternal(domPath->path(), windingRuleString);
 }
 
@@ -1133,18 +1118,13 @@ bool CanvasRenderingContext2D::isPointInPath(const float x, const float y, const
     return isPointInPathInternal(m_path, x, y, windingRuleString);
 }
 
-bool CanvasRenderingContext2D::isPointInPath(Path2D* domPath, const float x, const float y, ExceptionState& exceptionState)
+bool CanvasRenderingContext2D::isPointInPath(Path2D* domPath, const float x, const float y)
 {
-    return isPointInPath(domPath, x, y, "nonzero", exceptionState);
+    return isPointInPath(domPath, x, y, "nonzero");
 }
 
-bool CanvasRenderingContext2D::isPointInPath(Path2D* domPath, const float x, const float y, const String& windingRuleString, ExceptionState& exceptionState)
+bool CanvasRenderingContext2D::isPointInPath(Path2D* domPath, const float x, const float y, const String& windingRuleString)
 {
-    if (!domPath) {
-        exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "Path"));
-        return false;
-    }
-
     return isPointInPathInternal(domPath->path(), x, y, windingRuleString);
 }
 
@@ -1170,13 +1150,8 @@ bool CanvasRenderingContext2D::isPointInStroke(const float x, const float y)
     return isPointInStrokeInternal(m_path, x, y);
 }
 
-bool CanvasRenderingContext2D::isPointInStroke(Path2D* domPath, const float x, const float y, ExceptionState& exceptionState)
+bool CanvasRenderingContext2D::isPointInStroke(Path2D* domPath, const float x, const float y)
 {
-    if (!domPath) {
-        exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "Path"));
-        return false;
-    }
-
     return isPointInStrokeInternal(domPath->path(), x, y);
 }
 
@@ -1208,13 +1183,8 @@ void CanvasRenderingContext2D::scrollPathIntoView()
     scrollPathIntoViewInternal(m_path);
 }
 
-void CanvasRenderingContext2D::scrollPathIntoView(Path2D* path2d, ExceptionState& exceptionState)
+void CanvasRenderingContext2D::scrollPathIntoView(Path2D* path2d)
 {
-    if (!path2d) {
-        exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "Path2D"));
-        return;
-    }
-
     scrollPathIntoViewInternal(path2d->path());
 }
 

third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext2D.h

@@ -152,22 +152,22 @@ public:
     PassRefPtr<Path2D> currentPath();
     void setCurrentPath(Path2D*);
     void fill(const String& winding = "nonzero");
-    void fill(Path2D*, ExceptionState&);
-    void fill(Path2D*, const String& winding, ExceptionState&);
+    void fill(Path2D*);
+    void fill(Path2D*, const String& winding);
     void stroke();
-    void stroke(Path2D*, ExceptionState&);
+    void stroke(Path2D*);
     void clip(const String& winding = "nonzero");
-    void clip(Path2D*, ExceptionState&);
-    void clip(Path2D*, const String& winding, ExceptionState&);
+    void clip(Path2D*);
+    void clip(Path2D*, const String& winding);
 
     bool isPointInPath(const float x, const float y, const String& winding = "nonzero");
-    bool isPointInPath(Path2D*, const float x, const float y, ExceptionState&);
-    bool isPointInPath(Path2D*, const float x, const float y, const String& winding, ExceptionState&);
+    bool isPointInPath(Path2D*, const float x, const float y);
+    bool isPointInPath(Path2D*, const float x, const float y, const String& winding);
     bool isPointInStroke(const float x, const float y);
-    bool isPointInStroke(Path2D*, const float x, const float y, ExceptionState&);
+    bool isPointInStroke(Path2D*, const float x, const float y);
 
     void scrollPathIntoView();
-    void scrollPathIntoView(Path2D*, ExceptionState&);
+    void scrollPathIntoView(Path2D*);
 
     void clearRect(float x, float y, float width, float height);
     void fillRect(float x, float y, float width, float height);

third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext2D.idl

@@ -69,27 +69,27 @@ interface CanvasRenderingContext2D {
 
     // FIXME: Simplify these using optional CanvasWindingRule once crbug.com/339000 gets fixed.
     void fill();
-    [RuntimeEnabled=Path2D, RaisesException] void fill(Path2D? path);
-    void fill(CanvasWindingRule winding);
-    [RuntimeEnabled=Path2D, RaisesException] void fill(Path2D? path, CanvasWindingRule winding);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] void fill(Path2D path);
+    [StrictTypeChecking] void fill(CanvasWindingRule winding);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] void fill(Path2D path, CanvasWindingRule winding);
     void stroke();
-    [RuntimeEnabled=Path2D, RaisesException] void stroke(Path2D? path);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] void stroke(Path2D path);
     // FIXME: Simplify these using optional CanvasWindingRule once crbug.com/339000 gets fixed.
     void clip();
-    [RuntimeEnabled=Path2D, RaisesException] void clip(Path2D? path);
-    void clip(CanvasWindingRule winding);
-    [RuntimeEnabled=Path2D, RaisesException] void clip(Path2D? path, CanvasWindingRule winding);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] void clip(Path2D path);
+    [StrictTypeChecking] void clip(CanvasWindingRule winding);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] void clip(Path2D path, CanvasWindingRule winding);
 
     // FIXME: Simplify these using optional CanvasWindingRule once crbug.com/339000 gets fixed.
     boolean isPointInPath(float x, float y);
-    [RuntimeEnabled=Path2D, RaisesException] boolean isPointInPath(Path2D? path, float x, float y);
-    boolean isPointInPath(float x, float y, CanvasWindingRule winding);
-    [RuntimeEnabled=Path2D, RaisesException] boolean isPointInPath(Path2D? path, float x, float y, CanvasWindingRule winding);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] boolean isPointInPath(Path2D path, float x, float y);
+    [StrictTypeChecking] boolean isPointInPath(float x, float y, CanvasWindingRule winding);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] boolean isPointInPath(Path2D path, float x, float y, CanvasWindingRule winding);
     boolean isPointInStroke(float x, float y);
-    [RuntimeEnabled=Path2D, RaisesException] boolean isPointInStroke(Path2D? path, float x, float y);
+    [RuntimeEnabled=Path2D, StrictTypeChecking] boolean isPointInStroke(Path2D path, float x, float y);
 
     [RuntimeEnabled=ExperimentalCanvasFeatures] void scrollPathIntoView();
-    [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void scrollPathIntoView(Path2D? path);
+    [RuntimeEnabled=ExperimentalCanvasFeatures, StrictTypeChecking] void scrollPathIntoView(Path2D path);
 
     // text
     attribute DOMString font;

third_party/WebKit/Source/core/html/canvas/Path2D.h

@@ -49,17 +49,13 @@ public:
 
     const Path& path() const { return m_path; }
 
-    void addPath(Path2D* path, ExceptionState& exceptionState)
+    void addPath(Path2D* path)
     {
-        addPath(path, 0, exceptionState);
+        addPath(path, 0);
     }
 
-    void addPath(Path2D* path, SVGMatrixTearOff* transform, ExceptionState& exceptionState)
+    void addPath(Path2D* path, SVGMatrixTearOff* transform)
     {
-        if (!path) {
-            exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "Path"));
-            return;
-        }
         Path src = path->path();
         m_path.addPath(src, transform ? transform->value() : AffineTransform(1, 0, 0, 1, 0, 0));
     }

third_party/WebKit/Source/core/html/canvas/Path2D.idl

@@ -33,7 +33,7 @@
     Constructor(DOMString text)
 ] interface Path2D {
 
-    [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void addPath(Path2D? path, optional SVGMatrix? transform);
+    [RuntimeEnabled=ExperimentalCanvasFeatures, StrictTypeChecking] void addPath(Path2D path, optional SVGMatrix? transform);
 };
 
 Path2D implements CanvasPathMethods;