Blob creation methods for ImageBitmap.

Source/core/page/ImageBitmapFactories.h

Index: Source/core/page/ImageBitmapFactories.h
diff --git a/Source/core/page/ImageBitmapFactories.h b/Source/core/page/ImageBitmapFactories.h
index 05feca4ffc17d90f247e869bd42b51f43ae72575..8e39419b75d75090adc8c6cdbfd57f84a9a93735 100644
--- a/Source/core/page/ImageBitmapFactories.h
+++ b/Source/core/page/ImageBitmapFactories.h
@@ -32,9 +32,37 @@
 #define ImageBitmapFactories_h
 
 #include "bindings/v8/ScriptPromiseResolver.h"
+#include "bindings/v8/ScriptState.h"
+#include "core/dom/EventTarget.h"
+#include "core/fileapi/FileReaderLoader.h"
+#include "core/fileapi/FileReaderLoaderClient.h"
+#include "core/platform/graphics/IntRect.h"
+#include "wtf/Forward.h"
 
 namespace WebCore {
 
+class ImageBitmapLoader : public FileReaderLoaderClient {
+
+public:
+    ImageBitmapLoader(EventTarget*, PassRefPtr<ScriptPromiseResolver>, IntRect*);
+    void start(Blob*);
+
+    ~ImageBitmapLoader() { }
+
+private:
+    virtual void didStartLoading() { }
+    virtual void didReceiveData() { }
+    virtual void didFinishLoading();
+    virtual void didFail(FileError::ErrorCode);
+
+    EventTarget* m_eventTarget;
+    ScriptState* m_scriptState;
+    FileReaderLoader m_loader;
+    RefPtr<ScriptPromiseResolver> m_resolver;
+    IntRect* m_cropRect;
+};
+
+class Blob;
 class CanvasRenderingContext2D;
 class EventTarget;
 class ExceptionState;
@@ -54,6 +82,8 @@ ScriptObject createImageBitmap(EventTarget*, CanvasRenderingContext2D*, Exceptio
 ScriptObject createImageBitmap(EventTarget*, CanvasRenderingContext2D*, int sx, int sy, int sw, int sh, ExceptionState&);
 ScriptObject createImageBitmap(EventTarget*, HTMLCanvasElement*, ExceptionState&);
 ScriptObject createImageBitmap(EventTarget*, HTMLCanvasElement*, int sx, int sy, int sw, int sh, ExceptionState&);
+ScriptObject createImageBitmap(EventTarget*, Blob*, ExceptionState&);
+ScriptObject createImageBitmap(EventTarget*, Blob*, int sx, int sy, int sw, int sh, ExceptionState&);
 ScriptObject createImageBitmap(EventTarget*, ImageData*, ExceptionState&);
 ScriptObject createImageBitmap(EventTarget*, ImageData*, int sx, int sy, int sw, int sh, ExceptionState&);
 ScriptObject createImageBitmap(EventTarget*, ImageBitmap*, ExceptionState&);