Ship ImageBitmap.close()

BUG=605186

Review URL: https://codereview.chromium.org/1917193002

Cr-Commit-Position: refs/heads/master@{#389851}

third_party/WebKit/LayoutTests/virtual/stable/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt

@@ -379,6 +379,7 @@ interface IDBVersionChangeEvent : Event
 interface ImageBitmap
     getter height
     getter width
+    method close
     method constructor
 interface ImageData
     getter height

third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-dedicated-worker-expected.txt

@@ -405,6 +405,7 @@ Starting worker: resources/global-interface-listing.js
 [Worker]     attribute @@toStringTag
 [Worker]     getter height
 [Worker]     getter width
+[Worker]     method close
 [Worker]     method constructor
 [Worker] interface ImageData
 [Worker]     attribute @@toStringTag

third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt

@@ -2952,6 +2952,7 @@ interface ImageBitmap
     attribute @@toStringTag
     getter height
     getter width
+    method close
     method constructor
 interface ImageData
     attribute @@toStringTag

third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-shared-worker-expected.txt

@@ -392,6 +392,7 @@ Starting worker: resources/global-interface-listing.js
 [Worker]     attribute @@toStringTag
 [Worker]     getter height
 [Worker]     getter width
+[Worker]     method close
 [Worker]     method constructor
 [Worker] interface ImageData
 [Worker]     attribute @@toStringTag

third_party/WebKit/Source/core/frame/ImageBitmap.idl

@@ -9,5 +9,5 @@
 ] interface ImageBitmap {
     readonly attribute unsigned long width;
     readonly attribute unsigned long height;
-    [RuntimeEnabled=ExperimentalCanvasFeatures] void close();
+    void close();
 };