Merge 93441 - REGRESSION(r91628): 3 canvas tests crash on Chromium Linux and one test fail on Chr...

Source/WebCore/platform/graphics/BitmapImage.h

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  *
  * 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.
@@ skipping 141 matching lines @@
     virtual bool getHBITMAP(HBITMAP);
     virtual bool getHBITMAPOfSize(HBITMAP, LPSIZE);
 #endif
 
 #if PLATFORM(GTK)
     virtual GdkPixbuf* getGdkPixbuf();
 #endif
 
     virtual NativeImagePtr nativeImageForCurrentFrame() { return frameAtIndex(currentFrame()); }
     bool frameHasAlphaAtIndex(size_t);
-    bool currentFrameHasAlpha() { return frameHasAlphaAtIndex(currentFrame()); }
+    virtual bool currentFrameHasAlpha() { return frameHasAlphaAtIndex(currentFrame()); }
 
 #if !ASSERT_DISABLED
-    bool notSolidColor()
+    virtual bool notSolidColor()
     {
         return size().width() != 1 || size().height() != 1 || frameCount() > 1;
     }
 #endif
 
 protected:
     enum RepetitionCountStatus {
       Unknown,    // We haven't checked the source's repetition count.
       Uncertain,  // We have a repetition count, but it might be wrong (some GIFs have a count after the image data, and will report "loop once" until all data has been decoded).
       Certain     // The repetition count is known to be correct.
@@ skipping 119 matching lines @@
     unsigned m_decodedSize; // The current size of all decoded frames.
     mutable unsigned m_decodedPropertiesSize; // The size of data decoded by the source to determine image properties (e.g. size, frame count, etc).
 
     mutable bool m_haveFrameCount;
     size_t m_frameCount;
 };
 
 }
 
 #endif