Unit test for non-default orientation images which don't produce pixels.

Source/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 37 matching lines @@
     friend class GradientGeneratedImage;
     friend class GraphicsContext;
 public:
     static PassRefPtr<BitmapImage> create(PassRefPtr<NativeImageSkia>, ImageObserver* = 0);
 
     static PassRefPtr<BitmapImage> create(ImageObserver* observer = 0)
     {
         return adoptRef(new BitmapImage(observer));
     }
 
+    // This allows constructing a BitmapImage with a forced non-default orientation.
+    static PassRefPtr<BitmapImage> createWithOrientationForTesting(PassRefPtr<NativeImageSkia>, ImageOrientation);
+
     virtual ~BitmapImage();
 
     virtual bool isBitmapImage() const override;
 
     virtual bool currentFrameHasSingleSecurityOrigin() const override;
 
     virtual IntSize size() const override;
     IntSize sizeRespectingOrientation() const;
     virtual bool getHotSpot(IntPoint&) const override;
     virtual String filenameExtension() const override;
@@ skipping 21 matching lines @@
 
 #if ENABLE(ASSERT)
     virtual bool notSolidColor() override;
 #endif
 
 private:
     friend class BitmapImageTest;
 
     void updateSize() const;
 
-protected:
+private:
     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.
     };
 
     BitmapImage(PassRefPtr<NativeImageSkia>, ImageObserver* = 0);
     BitmapImage(ImageObserver* = 0);
 
     void draw(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, SkXfermode::Mode, RespectImageOrientationEnum) override;
@@ skipping 48 matching lines @@
     bool internalAdvanceAnimation(bool skippingFrames);
 
     // Checks to see if the image is a 1x1 solid color.  We optimize these images and just do a fill rect instead.
     // This check should happen regardless whether m_checkedForSolidColor is already set, as the frame may have
     // changed.
     void checkForSolidColor();
 
     virtual bool mayFillWithSolidColor() override;
     virtual Color solidColor() const override;
 
-private:
     ImageSource m_source;
     mutable IntSize m_size; // The size to use for the overall image (will just be the size of the first image).
     mutable IntSize m_sizeRespectingOrientation;
 
     size_t m_currentFrame; // The index of the current frame of animation.
     Vector<FrameData, 1> m_frames; // An array of the cached frames of the animation. We have to ref frames to pin them in the cache.
 
     Timer<BitmapImage>* m_frameTimer;
     int m_repetitionCount; // How many total animation loops we should do.  This will be cAnimationNone if this image type is incapable of animation.
     RepetitionCountStatus m_repetitionCountStatus;
@@ skipping 16 matching lines @@
     bool m_sizeAvailable : 1; // Whether or not we can obtain the size of the first image frame yet from ImageIO.
     mutable bool m_hasUniformFrameSize : 1;
     mutable bool m_haveFrameCount : 1;
 };
 
 DEFINE_IMAGE_TYPE_CASTS(BitmapImage);
 
 } // namespace blink
 
 #endif