Adding ArrayBufferView as a constructor type to Response

BUG=412027

Review URL: https://codereview.chromium.org/558793002

git-svn-id: svn://svn.chromium.org/blink/trunk@181762 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/http/tests/serviceworker/resources/response-content-worker.js

@@ -28,4 +28,38 @@ promise_test(function() {
             'Response body ArrayBuffer should match ArrayBuffer ' +
             'it was constructed with.');
         });
-  }, 'Behavior of Response with arraybuffer content.');
\ No newline at end of file
+  }, 'Behavior of Response with ArrayBuffer content.');
+
+promise_test(function() {
+    var intView = new Int32Array([0, 1, 2, 3, 4, 55, 6, 7, 8, 9]);
+
+    var response = new Response(intView);
+    assert_false(response.headers.has('Content-Type'),
+      'A Response constructed with ArrayBufferView ' +
+      'should not have a content type.');
+    return response.body.asArrayBuffer()
+      .then(function(buffer) {
+          var resultIntView = new Int32Array(buffer);
+          assert_array_equals(
+            resultIntView, [0, 1, 2, 3, 4, 55, 6, 7, 8, 9],
+            'Response body ArrayBuffer should match ArrayBufferView ' +
+            'it was constructed with.');
+        });
+  }, 'Behavior of Response with ArrayBufferView content without a slice.');
+
+promise_test(function() {
+    var intView = new Int32Array([0, 1, 2, 3, 4, 55, 6, 7, 8, 9]);
+    var slice = intView.subarray(1, 4);  // Should be [1, 2, 3]
+    var response = new Response(slice);
+    assert_false(response.headers.has('Content-Type'),
+      'A Response constructed with ArrayBufferView ' +
+      'should not have a content type.');
+    return response.body.asArrayBuffer()
+      .then(function(buffer) {
+          var resultIntView = new Int32Array(buffer);
+          assert_array_equals(
+            resultIntView, [1, 2, 3],
+            'Response body ArrayBuffer should match ArrayBufferView ' +
+            'slice it was constructed with.');
+        });
+  }, 'Behavior of Response with ArrayBufferView content with a slice.');

third_party/WebKit/Source/modules/serviceworkers/Response.cpp

@@ -12,6 +12,8 @@
 #include "modules/serviceworkers/ResponseInit.h"
 #include "public/platform/WebServiceWorkerResponse.h"
 #include "wtf/ArrayBuffer.h"
+#include "wtf/ArrayBufferView.h"
+#include "wtf/RefPtr.h"
 
 namespace blink {
 
@@ -70,6 +72,15 @@ Response* Response::create(const ArrayBuffer* body, const Dictionary& responseIn
     return create(blob.get(), ResponseInit(responseInit), exceptionState);
 }
 
+Response* Response::create(const ArrayBufferView* body, const Dictionary& responseInit, ExceptionState& exceptionState)
+{
+    OwnPtr<BlobData> blobData = BlobData::create();
+    blobData->appendArrayBufferView(body);
+    const long long length = blobData->length();
+    RefPtrWillBeRawPtr<Blob> blob = Blob::create(BlobDataHandle::create(blobData.release(), length));
+    return create(blob.get(), ResponseInit(responseInit), exceptionState);
+}
+
 Response* Response::create(Blob* body, const ResponseInit& responseInit, ExceptionState& exceptionState)
 {
     // "1. If |init|'s status member is not in the range 200 to 599, throw a

third_party/WebKit/Source/modules/serviceworkers/Response.h

@@ -12,8 +12,7 @@
 #include "modules/serviceworkers/Headers.h"
 #include "platform/blob/BlobData.h"
 #include "platform/heap/Handle.h"
-#include "wtf/RefPtr.h"
-#include "wtf/text/WTFString.h"
+#include "wtf/Forward.h"
 
 namespace blink {
 
@@ -28,6 +27,7 @@ public:
     static Response* create(Blob*, const Dictionary&, ExceptionState&);
     static Response* create(const String&, const Dictionary&, ExceptionState&);
     static Response* create(const ArrayBuffer*, const Dictionary&, ExceptionState&);
+    static Response* create(const ArrayBufferView*, const Dictionary&, ExceptionState&);
     static Response* create(Blob*, const ResponseInit&, ExceptionState&);
     static Response* create(FetchResponseData*);
     static Response* create(const WebServiceWorkerResponse&);

third_party/WebKit/Source/modules/serviceworkers/Response.idl

@@ -7,11 +7,11 @@
 enum ResponseType { "basic", "cors", "default", "error", "opaque" };
 
 [
-    // FIXME: Add ctors for ArrayBufferView, FormData and URLSearchParams
-    // response bodies.
+    // FIXME: Add ctors for FormData and URLSearchParams response bodies.
     Constructor(ScalarValueString body, optional Dictionary responseInitDict),
     Constructor(Blob? body, optional Dictionary responseInitDict),
     Constructor(ArrayBuffer input, optional Dictionary requestInitDict),
+    Constructor(ArrayBufferView input, optional Dictionary requestInitDict),
     RuntimeEnabled=ServiceWorker,
     Exposed=ServiceWorker,
     RaisesException=Constructor,