Add tinted static UI resource cache

cc/resources/ui_resource_bitmap.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_RESOURCES_UI_RESOURCE_BITMAP_H_
 #define CC_RESOURCES_UI_RESOURCE_BITMAP_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #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"
 
 class SkBitmap;
 
 namespace cc {
 
 class ETC1PixelRef;
 
 // A bitmap class that contains a ref-counted reference to a SkPixelRef that
 // holds the content of the bitmap (cannot use SkBitmap because of ETC1).
 // Thread-safety (by ways of SkPixelRef) ensures that both main and impl threads
 // can hold references to the bitmap and that asynchronous uploads are allowed.
 class CC_EXPORT UIResourceBitmap {
  public:
   enum UIResourceFormat {
     RGBA8,
     ALPHA_8,
     ETC1
   };
 
   gfx::Size GetSize() const { return size_; }
   UIResourceFormat GetFormat() const { return format_; }
   bool GetOpaque() const { return opaque_; }
   void SetOpaque(bool opaque) { opaque_ = opaque; }
 
+  // Draw the UIResourceBitmap onto the provided |canvas| using the style
+  // information specified by |paint|.
+  void DrawToCanvas(SkCanvas* canvas, SkPaint* paint);
+
   // User must ensure that |skbitmap| is immutable.  The SkBitmap Format should
   // be 32-bit RGBA or 8-bit ALPHA.
   explicit UIResourceBitmap(const SkBitmap& skbitmap);
   UIResourceBitmap(const gfx::Size& size, bool is_opaque);
   UIResourceBitmap(sk_sp<SkPixelRef> pixel_ref, const gfx::Size& size);
   UIResourceBitmap(const UIResourceBitmap& other);
   ~UIResourceBitmap();
 
  private:
   friend class AutoLockUIResourceBitmap;
@@ skipping 14 matching lines @@
   ~AutoLockUIResourceBitmap();
   const uint8_t* GetPixels() const;
 
  private:
   const UIResourceBitmap& bitmap_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_UI_RESOURCE_BITMAP_H_