ui/gfx: Convert Canvas::ClipRectInt() to use gfx::Rect.

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 84 matching lines @@
   virtual void SaveLayerAlpha(uint8 alpha) = 0;
   virtual void SaveLayerAlpha(uint8 alpha, const gfx::Rect& layer_bounds) = 0;
 
   // Restores the drawing state after a call to Save*(). It is an error to
   // call Restore() more times than Save*().
   virtual void Restore() = 0;
 
   // Wrapper function that takes integer arguments.
   // Returns true if the clip is non-empty.
   // See clipRect for specifics.
-  virtual bool ClipRectInt(int x, int y, int w, int h) = 0;
+  virtual bool ClipRectInt(const gfx::Rect& rect) = 0;
 
   // Wrapper function that takes integer arguments.
   // See translate() for specifics.
   virtual void TranslateInt(int x, int y) = 0;
 
   // Wrapper function that takes integer arguments.
   // See scale() for specifics.
   virtual void ScaleInt(int x, int y) = 0;
 
   // Fills the specified region with the specified color using a transfer
@@ skipping 137 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_