cc: Apply the layer's initial CSS scale to the contentsScale to render text at the right resolution.

cc/layer_tree_host_impl.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 "config.h"
 
 #include "CCLayerTreeHostImpl.h"
 
 #include "base/basictypes.h"
 #include "CCAppendQuadsData.h"
@@ skipping 338 matching lines @@
 void CCLayerTreeHostImpl::calculateRenderSurfaceLayerList(CCLayerList& renderSurfaceLayerList)
 {
     ASSERT(renderSurfaceLayerList.empty());
     ASSERT(m_rootLayerImpl);
     ASSERT(m_renderer); // For maxTextureSize.
 
     {
         updateRootScrollLayerImplTransform();
 
         TRACE_EVENT0("cc", "CCLayerTreeHostImpl::calcDrawEtc");
-        CCLayerTreeHostCommon::calculateDrawTransforms(m_rootLayerImpl.get(), deviceViewportSize(), m_deviceScaleFactor, &m_layerSorter, rendererCapabilities().maxTextureSize, renderSurfaceLayerList);
+        float pageScaleFactor = m_pinchZoomViewport.pageScaleFactor();
+        CCLayerTreeHostCommon::calculateDrawTransforms(m_rootLayerImpl.get(), deviceViewportSize(), m_deviceScaleFactor, pageScaleFactor, &m_layerSorter, rendererCapabilities().maxTextureSize, renderSurfaceLayerList);
 
         trackDamageForAllSurfaces(m_rootLayerImpl.get(), renderSurfaceLayerList);
     }
 }
 
 void CCLayerTreeHostImpl::FrameData::appendRenderPass(scoped_ptr<CCRenderPass> renderPass)
 {
     CCRenderPass* pass = renderPass.get();
     renderPasses.push_back(pass);
     renderPassesById.set(pass->id(), renderPass.Pass());
@@ skipping 1083 matching lines @@
 
     CCScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], monotonicTime);
 }
 
 }  // namespace cc