Avoid exposing gl bindings through cc public API headers

cc/scrollbar_layer.cc

 // Copyright 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.
 
 #include "cc/scrollbar_layer.h"
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
+#include "cc/caching_bitmap_content_layer_updater.h"
 #include "cc/layer_painter.h"
 #include "cc/layer_tree_host.h"
+#include "cc/prioritized_resource.h"
 #include "cc/resource_update_queue.h"
 #include "cc/scrollbar_layer_impl.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebRect.h"
 #include "ui/gfx/rect_conversions.h"
 
 namespace cc {
 
 scoped_ptr<LayerImpl> ScrollbarLayer::createLayerImpl(LayerTreeImpl* treeImpl)
 {
     return ScrollbarLayerImpl::create(treeImpl, id()).PassAs<LayerImpl>();
@@ skipping 307 matching lines @@
     // Consider the thumb to be at the origin when painting.
     gfx::Rect thumbRect = m_geometry->thumbRect(m_scrollbar.get());
     gfx::Rect originThumbRect = scrollbarLayerRectToContentRect(gfx::Rect(thumbRect.size()));
     if (!originThumbRect.IsEmpty())
         updatePart(m_thumbUpdater.get(), m_thumb.get(), originThumbRect, queue, stats);
 
     m_dirtyRect = gfx::RectF();
 }
 
 }  // namespace cc