Add tinted static UI resource cache

cc/resources/ui_resource_bitmap.h

Index: cc/resources/ui_resource_bitmap.h
diff --git a/cc/resources/ui_resource_bitmap.h b/cc/resources/ui_resource_bitmap.h
index c56cc86115e9a25f84b72de065d7ebffc8831238..97991b9dcb145bf128104db98cc05f74ad431e51 100644
--- a/cc/resources/ui_resource_bitmap.h
+++ b/cc/resources/ui_resource_bitmap.h
@@ -11,6 +11,8 @@
 
 #include "base/memory/ref_counted.h"
 #include "cc/base/cc_export.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPixelRef.h"
 #include "ui/gfx/geometry/size.h"
 
@@ -36,6 +38,7 @@ class CC_EXPORT UIResourceBitmap {
   UIResourceFormat GetFormat() const { return format_; }
   bool GetOpaque() const { return opaque_; }
   void SetOpaque(bool opaque) { opaque_ = opaque; }
+  void Draw(SkCanvas& canvas, SkPaint& paint);

[vmpstr, 2016/08/31 18:01:55]

Can you add a comment explaining what this function does?

Also, as a nit, can you rename this to "DrawToCanvas"

[mdjones, 2016/08/31 21:17:01]

Done.

 
   // User must ensure that |skbitmap| is immutable.  The SkBitmap Format should
   // be 32-bit RGBA or 8-bit ALPHA.