cc: Create a cc::ScrollbarThemePainter and an adapter class in compositor bindings.

cc/tiled_layer_unittest.cc

 // Copyright 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.
 
 #include "cc/tiled_layer.h"
 
 #include "cc/bitmap_content_layer_updater.h"
 #include "cc/layer_painter.h"
 #include "cc/overdraw_metrics.h"
 #include "cc/rendering_stats.h"
@@ skipping 1553 matching lines @@
     m_layerTreeHost->commitComplete();
 
     resourceManagerClearAllMemory(m_layerTreeHost->contentsTextureManager(), m_resourceProvider.get());
     m_layerTreeHost->setRootLayer(0);
 }
 
 class TrackingLayerPainter : public LayerPainter {
 public:
     static scoped_ptr<TrackingLayerPainter> create() { return make_scoped_ptr(new TrackingLayerPainter()); }
 
-    virtual void paint(SkCanvas*, const gfx::Rect& contentRect, gfx::RectF&) OVERRIDE
+    virtual void paint(SkCanvas*, gfx::Rect contentRect, gfx::RectF&) OVERRIDE
     {
         m_paintedRect = contentRect;
     }
 
     const gfx::Rect& paintedRect() const { return m_paintedRect; }
     void resetPaintedRect() { m_paintedRect = gfx::Rect(); }
 
 private:
     TrackingLayerPainter() { }
 
@@ skipping 78 matching lines @@
 
     // Invalidate the entire layer in layer space. When painting, the rect given to webkit should match the layer's bounds.
     layer->setNeedsDisplayRect(layerRect);
     layer->update(*m_queue.get(), 0, m_stats);
 
     EXPECT_RECT_EQ(layerRect, layer->trackingLayerPainter()->paintedRect());
 }
 
 }  // namespace
 }  // namespace cc