Use union type in ImageBitmapFactories.idl

third_party/WebKit/Source/core/html/ImageData.cpp

Index: third_party/WebKit/Source/core/html/ImageData.cpp
diff --git a/third_party/WebKit/Source/core/html/ImageData.cpp b/third_party/WebKit/Source/core/html/ImageData.cpp
index f0cec65d2ecd00cf4d5c6b57a1d593615b16ecda..07fdb1e70cd9e96aea6773624d6e542975d66b98 100644
--- a/third_party/WebKit/Source/core/html/ImageData.cpp
+++ b/third_party/WebKit/Source/core/html/ImageData.cpp
@@ -32,6 +32,7 @@
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/V8Uint8ClampedArray.h"
 #include "core/dom/ExceptionCode.h"
+#include "core/frame/ImageBitmap.h"
 #include "platform/RuntimeEnabledFeatures.h"
 
 namespace blink {
@@ -146,6 +147,20 @@ ImageData* ImageData::create(DOMUint8ClampedArray* data, unsigned width, unsigne
     return new ImageData(IntSize(width, height), data);
 }
 
+PassRefPtrWillBeRawPtr<ImageBitmap> ImageData::createImageBitmap(EventTarget& eventTarget, ImageBitmapSource* bitmapSource, int sx, int sy, int sw, int sh, ExceptionState& exceptionState)
+{
+    if (!sw || !sh) {
+        exceptionState.throwDOMException(IndexSizeError, String::format("The source %s provided is 0.", sw ? "height" : "width"));
+        return nullptr;
+    }
+    ImageData* data = static_cast<ImageData*>(bitmapSource);
+    if (data->data()->bufferBase()->isNeutered()) {
+        exceptionState.throwDOMException(InvalidStateError, "The source data has been neutered.");
+        return nullptr;
+    }
+    return ImageBitmap::create(data, IntRect(sx, sy, sw, sh));
+}
+
 v8::Local<v8::Object> ImageData::associateWithWrapper(v8::Isolate* isolate, const WrapperTypeInfo* wrapperType, v8::Local<v8::Object> wrapper)
 {
     wrapper = ScriptWrappable::associateWithWrapper(isolate, wrapperType, wrapper);