More old files deletion.

ui/gfx/scoped_canvas.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 UI_GFX_SCOPED_CANVAS_H_
-#define UI_GFX_SCOPED_CANVAS_H_
-
-#include "ui/gfx/canvas.h"
-
-namespace gfx {
-
-// Saves the drawing state, and restores the state when going out of scope.
-class ScopedCanvas {
- public:
-  explicit ScopedCanvas(gfx::Canvas* canvas) : canvas_(canvas) {
-    if (canvas_)
-      canvas_->Save();
-  }
-  ~ScopedCanvas() {
-    if (canvas_)
-      canvas_->Restore();
-  }
-  void SetCanvas(gfx::Canvas* canvas) {
-    if (canvas_)
-      canvas_->Restore();
-    canvas_ = canvas;
-    canvas_->Save();
-  }
-
- private:
-  gfx::Canvas* canvas_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedCanvas);
-};
-
-}  // namespace gfx
-
-#endif  // UI_GFX_SCOPED_CANVAS_H_