Remove ImageSource::bytesDecodedToDetermineProperties() and fallout

Source/core/platform/graphics/BitmapImage.h

Index: Source/core/platform/graphics/BitmapImage.h
diff --git a/Source/core/platform/graphics/BitmapImage.h b/Source/core/platform/graphics/BitmapImage.h
index 3b3af0735cacb26c1e88ce7ae25ddeb23dbca829..5191a08009b580ece8166ff89a2f3af6cd015bfc 100644
--- a/Source/core/platform/graphics/BitmapImage.h
+++ b/Source/core/platform/graphics/BitmapImage.h
@@ -75,8 +75,6 @@ public:
     virtual void stopAnimation() OVERRIDE;
     virtual void resetAnimation() OVERRIDE;
 
-    virtual unsigned decodedSize() const OVERRIDE;
-
     virtual PassRefPtr<NativeImageSkia> nativeImageForCurrentFrame() OVERRIDE;
     virtual bool currentFrameKnownToBeOpaque() OVERRIDE;
 
@@ -137,12 +135,6 @@ protected:
     // Whether or not size is available yet.
     bool isSizeAvailable();
 
-    // Called after asking the source for any information that may require
-    // decoding part of the image (e.g., the image size).  We need to report
-    // the partially decoded data to our observer so it has an accurate
-    // account of the BitmapImage's memory usage.
-    void didDecodeProperties() const;
-
     // Animation.
     int repetitionCount(bool imageKnownToBeComplete);  // |imageKnownToBeComplete| should be set if the caller knows the entire image has been decoded.
     bool shouldAnimate();
@@ -179,8 +171,6 @@ protected:
 
     Color m_solidColor;  // If we're a 1x1 solid color, this is the color to use to fill.
 
-    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).
     size_t m_frameCount;
 
     bool m_isSolidColor : 1; // Whether or not we are a 1x1 solid image.