ui/gfx: Make gfx::Canvas inherit from gfx::CanvasSkia.

ui/views/controls/textfield/native_textfield_views.h

 // Copyright (c) 2012 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_VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_VIEWS_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_VIEWS_H_
 #pragma once
 
 #include "base/memory/weak_ptr.h"
 #include "base/string16.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/gfx/font.h"
 #include "ui/views/border.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/textfield/native_textfield_wrapper.h"
 #include "ui/views/controls/textfield/textfield_views_model.h"
 #include "ui/views/drag_controller.h"
 #include "ui/views/touchui/touch_selection_controller.h"
 #include "ui/views/view.h"
 
 namespace base {
 class Time;
 }
 
 namespace gfx {
-class Canvas;
+class CanvasSkia;
 }
 
 namespace views {
 
 class FocusableBorder;
 class KeyEvent;
 class MenuModelAdapter;
 class MenuRunner;
 
 // A views/skia only implementation of NativeTextfieldWrapper.
@@ skipping 21 matching lines @@
   virtual void OnMouseReleased(const MouseEvent& event) OVERRIDE;
   virtual bool OnKeyPressed(const KeyEvent& event) OVERRIDE;
   virtual bool GetDropFormats(
       int* formats,
       std::set<ui::OSExchangeData::CustomFormat>* custom_formats) OVERRIDE;
   virtual bool CanDrop(const ui::OSExchangeData& data) OVERRIDE;
   virtual int OnDragUpdated(const DropTargetEvent& event) OVERRIDE;
   virtual int OnPerformDrop(const DropTargetEvent& event) OVERRIDE;
   virtual void OnDragDone() OVERRIDE;
   virtual bool OnKeyReleased(const KeyEvent& event) OVERRIDE;
-  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnPaint(gfx::CanvasSkia* canvas) OVERRIDE;
   virtual void OnFocus() OVERRIDE;
   virtual void OnBlur() OVERRIDE;
 
   // TouchSelectionClientView overrides:
   virtual void SelectRect(const gfx::Point& start,
                           const gfx::Point& end) OVERRIDE;
 
   // ContextMenuController overrides:
   virtual void ShowContextMenuForView(View* source,
                                       const gfx::Point& p,
@@ skipping 95 matching lines @@
 
   // A callback function to periodically update the cursor state.
   void UpdateCursor();
 
   // Repaint the cursor.
   void RepaintCursor();
 
   // Update the cursor_bounds and text_offset.
   void UpdateCursorBoundsAndTextOffset(size_t cursor_pos, bool insert_mode);
 
-  void PaintTextAndCursor(gfx::Canvas* canvas);
+  void PaintTextAndCursor(gfx::CanvasSkia* canvas);
 
   // Handle the keyevent.
   bool HandleKeyEvent(const KeyEvent& key_event);
 
   // Helper function to call MoveCursorTo on the TextfieldViewsModel.
   bool MoveCursorTo(const gfx::Point& point, bool select);
 
   // Utility function to inform the parent textfield (and its controller if any)
   // that the text in the textfield has changed.
   void PropagateTextChange();
@@ skipping 78 matching lines @@
   scoped_ptr<views::MenuRunner> context_menu_runner_;
 
   scoped_ptr<TouchSelectionController> touch_selection_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeTextfieldViews);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_VIEWS_H_