Refactor CCLayerTreeHostCommon - merge visible rect computation into calc draw transforms.

cc/CCLayerTreeHost.cpp

 // 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 "config.h"
 
 #include "CCLayerTreeHost.h"
 
 #include "CCFontAtlas.h"
 #include "CCGraphicsContext.h"
@@ skipping 552 matching lines @@
 {
     TRACE_EVENT0("cc", "CCLayerTreeHost::updateLayers");
 
     updateLayerScale(rootLayer, m_deviceScaleFactor, m_pageScaleFactor);
 
     LayerList updateList;
 
     {
         TRACE_EVENT0("cc", "CCLayerTreeHost::updateLayers::calcDrawEtc");
         CCLayerTreeHostCommon::calculateDrawTransforms(rootLayer, deviceViewportSize(), m_deviceScaleFactor, rendererCapabilities().maxTextureSize, updateList);
-        CCLayerTreeHostCommon::calculateVisibleRects(updateList);
     }
 
     // Reset partial texture update requests.
     m_partialTextureUpdateRequests = 0;
 
     bool needMoreUpdates = paintLayerContents(updateList, queue);
     if (m_triggerIdleUpdates && needMoreUpdates)
         setNeedsCommit();
 
     for (size_t i = 0; i < updateList.size(); ++i)
@@ skipping 270 matching lines @@
             else
                 layer->notifyAnimationFinished(wallClockTime);
         }
     }
 
     for (size_t childIndex = 0; childIndex < layer->children().size(); ++childIndex)
         setAnimationEventsRecursive(events, layer->children()[childIndex].get(), wallClockTime);
 }
 
 } // namespace cc