Fix out-of-memory crashes related to ArrayBuffer allocation

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 155 matching lines @@
 
     void drawImage(const CanvasImageSourceUnion&, float x, float y, ExceptionState&);
     void drawImage(const CanvasImageSourceUnion&, float x, float y, float width, float height, ExceptionState&);
     void drawImage(const CanvasImageSourceUnion&, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh, ExceptionState&);
     void drawImage(CanvasImageSource*, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh, ExceptionState&);
 
     CanvasGradient* createLinearGradient(float x0, float y0, float x1, float y1);
     CanvasGradient* createRadialGradient(float x0, float y0, float r0, float x1, float y1, float r1, ExceptionState&);
     CanvasPattern* createPattern(const CanvasImageSourceUnion&, const String& repetitionType, ExceptionState&);
 
-    ImageData* createImageData(ImageData*) const;
+    ImageData* createImageData(ImageData*, ExceptionState&) const;
     ImageData* createImageData(float width, float height, ExceptionState&) const;
     ImageData* getImageData(float sx, float sy, float sw, float sh, ExceptionState&) const;
     void putImageData(ImageData*, float dx, float dy);
     void putImageData(ImageData*, float dx, float dy, float dirtyX, float dirtyY, float dirtyWidth, float dirtyHeight);
 
     void reset() override;
 
     String font() const;
     void setFont(const String&) override;
 
@@ skipping 131 matching lines @@
     HashMap<String, Font> m_fontsResolvedUsingCurrentStyle;
     bool m_pruneLocalFontCacheScheduled;
     ListHashSet<String> m_fontLRUList;
 };
 
 DEFINE_TYPE_CASTS(CanvasRenderingContext2D, CanvasRenderingContext, context, context->is2d(), context.is2d());
 
 } // namespace blink
 
 #endif // CanvasRenderingContext2D_h