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

ui/views/controls/tree/tree_view_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_TREE_TREE_VIEW_VIEWS_H_
 #define UI_VIEWS_CONTROLS_TREE_TREE_VIEW_VIEWS_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 123 matching lines @@
   // FocusChangeListener overrides:
   virtual void OnWillChangeFocus(View* focused_before,
                                  View* focused_now) OVERRIDE;
   virtual void OnDidChangeFocus(View* focused_before,
                                 View* focused_now) OVERRIDE;
 
  protected:
   // View overrides:
   virtual gfx::Point GetKeyboardContextMenuLocation() OVERRIDE;
   virtual bool OnKeyPressed(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;
 
  private:
   friend class TreeViewViewsTest;
 
   // InternalNode is used to track information about the set of nodes displayed
   // by TreeViewViews.
   class InternalNode : public ui::TreeNode<InternalNode> {
    public:
@@ skipping 83 matching lines @@
 
   // Positions |editor_|.
   void LayoutEditor();
 
   // Schedules a paint for |node|.
   void SchedulePaintForNode(InternalNode* node);
 
   // Recursively paints rows from |min_row| to |max_row|. |node| is the node for
   // the row |*row|. |row| is updated as this walks the tree. Depth is the depth
   // of |*row|.
-  void PaintRows(gfx::Canvas* canvas,
+  void PaintRows(gfx::CanvasSkia* canvas,
                  int min_row,
                  int max_row,
                  InternalNode* node,
                  int depth,
                  int* row);
 
   // Invoked to paint a single node.
-  void PaintRow(gfx::Canvas* canvas,
+  void PaintRow(gfx::CanvasSkia* canvas,
                 InternalNode* node,
                 int row,
                 int depth);
 
   // Paints the expand control given the specified nodes bounds.
-  void PaintExpandControl(gfx::Canvas* canvas,
+  void PaintExpandControl(gfx::CanvasSkia* canvas,
                           const gfx::Rect& node_bounds,
                           bool expanded);
 
   // Returns the InternalNode for a model node. |create_type| indicates wheter
   // this should load InternalNode or not.
   InternalNode* GetInternalNodeForModelNode(
       ui::TreeModelNode* model_node,
       GetInternalNodeCreateType create_type);
 
   // Returns the bounds for a node.
@@ skipping 87 matching lines @@
   // Offset the text is drawn at. This accounts for the size of the expand
   // control, icon and offsets.
   int text_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(TreeView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TREE_TREE_VIEW_VIEWS_H_