blitters for sRGB and float16

include/views/SkWindow.h

Index: include/views/SkWindow.h
diff --git a/include/views/SkWindow.h b/include/views/SkWindow.h
index 6db85a421c8fc151c4cbfa43e9f317f9e0e14d6e..850a7e7211191b2499361859809831830569e08d 100644
--- a/include/views/SkWindow.h
+++ b/include/views/SkWindow.h
@@ -41,9 +41,12 @@ public:
         fSurfaceProps = props;
     }
 
+    SkImageInfo info() const { return fBitmap.info(); }
     const SkBitmap& getBitmap() const { return fBitmap; }
 
     void    resize(int width, int height);
+    void    resize(const SkImageInfo&);
+    void    setColorType(SkColorType, SkColorProfileType);
 
     bool    isDirty() const { return !fDirtyRgn.isEmpty(); }
     bool    update(SkIRect* updateArea);