cc: Add DISALLOW_COPY_AND_ASSIGN where appropriate.

cc/input/pinch_zoom_scrollbar_painter.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 CC_INPUT_PINCH_ZOOM_SCROLLBAR_PAINTER_H_
 #define CC_INPUT_PINCH_ZOOM_SCROLLBAR_PAINTER_H_
 
+#include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "cc/layers/scrollbar_theme_painter.h"
 
 namespace cc {
 
 class PinchZoomScrollbarPainter : public ScrollbarThemePainter {
  public:
   PinchZoomScrollbarPainter() {}
   virtual ~PinchZoomScrollbarPainter();
 
   virtual void PaintScrollbarBackground(SkCanvas* canvas,
                                         gfx::Rect rect) OVERRIDE;
   virtual void PaintTrackBackground(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
   virtual void PaintBackTrackPart(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
   virtual void PaintForwardTrackPart(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
   virtual void PaintBackButtonStart(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
   virtual void PaintBackButtonEnd(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
   virtual void PaintForwardButtonStart(SkCanvas* canvas,
                                        gfx::Rect rect) OVERRIDE;
   virtual void PaintForwardButtonEnd(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
   virtual void PaintTickmarks(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
   virtual void PaintThumb(SkCanvas* canvas, gfx::Rect rect) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PinchZoomScrollbarPainter);
 };
 
 }  // namespace cc
 
 #endif  // CC_INPUT_PINCH_ZOOM_SCROLLBAR_PAINTER_H_