Blob creation methods for ImageBitmap.

Source/core/page/ImageBitmap.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ImageBitmap_h
 #define ImageBitmap_h
 
 #include "bindings/v8/ScriptWrappable.h"
-#include "core/dom/ScriptExecutionContext.h"
+#include "core/fileapi/FileReaderLoader.h"
+#include "core/fileapi/FileReaderLoaderClient.h"
+#include "core/loader/cache/CachedImage.h"
+#include "core/loader/cache/CachedImageClient.h"
+#include "core/loader/cache/CachedResourceHandle.h"
+#include "core/page/DOMWindow.h"
+#include "core/page/ImageBitmapCallback.h"
 #include "core/platform/graphics/BitmapImage.h"
 #include "core/platform/graphics/ImageBuffer.h"
 #include "core/platform/graphics/IntRect.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebCore {
 
+class Blob;
+class FileError;
 class HTMLCanvasElement;
 class HTMLImageElement;
 class HTMLVideoElement;
 class ImageData;
 class ImageBitmapCallback;
 
-class ImageBitmap : public RefCounted<ImageBitmap>, public ScriptWrappable {
+class ImageBitmap : public RefCounted<ImageBitmap>, public FileReaderLoaderClient, public CachedImageClient, public ScriptWrappable {
 
 public:
     static PassRefPtr<ImageBitmap> create(HTMLImageElement*, IntRect);
     static PassRefPtr<ImageBitmap> create(HTMLVideoElement*, IntRect);
     static PassRefPtr<ImageBitmap> create(HTMLCanvasElement*, IntRect);
     static PassRefPtr<ImageBitmap> create(ImageData*, IntRect);
+    static PassRefPtr<ImageBitmap> create(DOMWindow*, PassRefPtr<ImageBitmapCallback>, Blob*, IntRect);
     static PassRefPtr<ImageBitmap> create(ImageBitmap*, IntRect);
 
-    BitmapImage* bitmapImage() const { return m_bitmap.get(); }
+    ~ImageBitmap();
+
+    Image* bitmapImage() const { return m_bitmap.get(); }
 
     int bitmapWidth() const { return m_bitmap->width(); }
     int bitmapHeight() const { return m_bitmap->height(); }
     IntSize bitmapSize() const { return m_bitmap->size(); }
     IntPoint bitmapOffset() const { return m_bitmapOffset; }
 
-    int width() const { return m_size.width(); }
-    int height() const { return m_size.height(); }
-    IntSize size() const { return m_size; }
+    int width() const { return m_cropRect.width(); }
+    int height() const { return m_cropRect.height(); }
+    IntSize size() const { return m_cropRect.size(); }
 
-    ~ImageBitmap() { };
 
 private:
     ImageBitmap(HTMLImageElement*, IntRect);
     ImageBitmap(HTMLVideoElement*, IntRect);
     ImageBitmap(HTMLCanvasElement*, IntRect);
+    ImageBitmap(DOMWindow*, PassRefPtr<ImageBitmapCallback>, Blob*, IntRect);
     ImageBitmap(ImageData*, IntRect);
     ImageBitmap(ImageBitmap*, IntRect);
 
-    RefPtr<BitmapImage> m_bitmap;
+    // FileReaderLoaderClient
+    virtual void didStartLoading() { }
+    virtual void didReceiveData() { }
+    virtual void didFinishLoading();
+    virtual void didFail(FileError::ErrorCode);
+
+    // CachedImageClient
+    virtual void notifyFinished(CachedResource*);
+
+    CachedResourceHandle<CachedImage> m_pendingCachedImage;
+    RefPtr<Image> m_bitmap;
     OwnPtr<ImageBuffer> m_buffer;
-
+    OwnPtr<FileReaderLoader> m_loader;
+    RefPtr<ImageBitmapCallback> m_callback;
+    DOMWindow* m_window;
     IntPoint m_bitmapOffset; // offset applied to the image when it is drawn to the context
-    IntSize m_size; // user defined size of the ImageBitmap
+    IntRect m_cropRect;
 };
 
 } // namespace WebCore
 
 #endif // ImageBitmap_h