ui/gfx: Convert CreateCanvas to use gfx::Size.

ui/gfx/canvas.h

 // Copyright (c) 2011 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 UI_GFX_CANVAS_H_
 #define UI_GFX_CANVAS_H_
 #pragma once
 
 #include <string>
 
@@ skipping 11 matching lines @@
 typedef unsigned int TextureID;
 }
 
 namespace gfx {
 
 class Brush;
 class CanvasSkia;
 class Font;
 class Point;
 class Rect;
+class Size;
 
 // TODO(beng): documentation.
 class UI_EXPORT Canvas {
  public:
   // Specifies the alignment for text rendered with the DrawStringInt method.
   enum {
     TEXT_ALIGN_LEFT = 1,
     TEXT_ALIGN_CENTER = 2,
     TEXT_ALIGN_RIGHT = 4,
     TEXT_VALIGN_TOP = 8,
@@ skipping 32 matching lines @@
     // See FORCE_RTL_DIRECTIONALITY for details.
     FORCE_LTR_DIRECTIONALITY = 4096,
   };
 
   virtual ~Canvas() {}
 
   // Creates an empty canvas. Must be initialized before it can be used.
   static Canvas* CreateCanvas();
 
   // Creates a canvas with the specified size.
-  static Canvas* CreateCanvas(int width, int height, bool is_opaque);
+  static Canvas* CreateCanvas(const gfx::Size& size, bool is_opaque);
 
   // Saves a copy of the drawing state onto a stack, operating on this copy
   // until a balanced call to Restore() is made.
   virtual void Save() = 0;
 
   // As with Save(), except draws to a layer that is blended with the canvas
   // at the specified alpha once Restore() is called.
   // |layer_bounds| are the bounds of the layer relative to the current
   // transform.
   virtual void SaveLayerAlpha(uint8 alpha) = 0;
@@ skipping 149 matching lines @@
   // Returns the rectangle that is invalid.
   virtual gfx::Rect GetInvalidRect() const = 0;
 
   // Returns the underlying Canvas.
   virtual Canvas* AsCanvas() = 0;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_CANVAS_H_