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

Source/WebCore/platform/graphics/Image.h

Index: Source/WebCore/platform/graphics/Image.h
===================================================================
--- Source/WebCore/platform/graphics/Image.h	(revision 93492)
+++ Source/WebCore/platform/graphics/Image.h	(working copy)
@@ -88,6 +88,7 @@
     static bool supportsType(const String&); 
 
     virtual bool isBitmapImage() const { return false; }
+    virtual bool currentFrameHasAlpha() { return false; }
 
     // Derived classes should override this if they can assure that 
     // the image contains only resources from its own security origin.
@@ -157,6 +158,10 @@
     virtual void drawPattern(GraphicsContext*, const FloatRect& srcRect, const AffineTransform& patternTransform,
                              const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator, const FloatRect& destRect);
 
+#if !ASSERT_DISABLED
+    virtual bool notSolidColor() { return true; }
+#endif
+
 protected:
     Image(ImageObserver* = 0);