Fix distorted image issue when open some images in a new browser window.

Source/core/fetch/ImageResource.h

Index: Source/core/fetch/ImageResource.h
diff --git a/Source/core/fetch/ImageResource.h b/Source/core/fetch/ImageResource.h
index a7d64cea618557ac6f606f331299801148e83611..866f45dc354f079afc8d7f11382d876a2e247d5b 100644
--- a/Source/core/fetch/ImageResource.h
+++ b/Source/core/fetch/ImageResource.h
@@ -75,6 +75,7 @@ public:
         NormalSize, // Report the size of the image associated with a certain renderer
         IntrinsicSize // Report the intrinsic size, i.e. ignore whatever has been set extrinsically.
     };
+    LayoutSize bitmapImageSizeRespectingOrientation(float) const;
     // This method takes a zoom multiplier that can be used to increase the natural size of the image by the zoom.
     LayoutSize imageSizeForRenderer(const RenderObject*, float multiplier, SizeType = NormalSize); // returns the size of the complete image.
     void computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio);
@@ -118,6 +119,7 @@ private:
     void clearImage();
     // If not null, changeRect is the changed part of the image.
     void notifyObservers(const IntRect* changeRect = 0);
+    void applyMultiplier(LayoutSize&, float) const;
 
     virtual void switchClientsToRevalidatedResource() OVERRIDE;