use SkColorType instead of (deprecated) SkBitmap::Config for copyTo

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 "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
@@ skipping 26 matching lines @@
   gfx::Size GetSize() const { return size_; }
   UIResourceFormat GetFormat() const { return format_; }
   UIResourceWrapMode GetWrapMode() const { return wrap_mode_; }
   void SetWrapMode(UIResourceWrapMode wrap_mode) { wrap_mode_ = wrap_mode; }
   bool GetOpaque() const { return opaque_; }
   void SetOpaque(bool opaque) { opaque_ = opaque; }
 
   // User must ensure that |skbitmap| is immutable.  The SkBitmap Format should
   // be 32-bit RGBA.
   explicit UIResourceBitmap(const SkBitmap& skbitmap);
+  UIResourceBitmap(int width, int height, bool isOpaque = false);
   UIResourceBitmap(const skia::RefPtr<SkPixelRef>& pixel_ref, gfx::Size size);
   ~UIResourceBitmap();
 
  private:
   friend class AutoLockUIResourceBitmap;
 
   void Create(const skia::RefPtr<SkPixelRef>& pixel_ref,
               gfx::Size size,
               UIResourceFormat format);
 
@@ skipping 10 matching lines @@
   ~AutoLockUIResourceBitmap();
   const uint8_t* GetPixels() const;
 
  private:
   const UIResourceBitmap& bitmap_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_UI_RESOURCE_BITMAP_H_