Merge 120858 - [chromium] Separate LayerRenderer initialization from updateLayers

Source/WebCore/platform/graphics/chromium/cc/CCSingleThreadProxy.cpp

Index: Source/WebCore/platform/graphics/chromium/cc/CCSingleThreadProxy.cpp
===================================================================
--- Source/WebCore/platform/graphics/chromium/cc/CCSingleThreadProxy.cpp	(revision 122256)
+++ Source/WebCore/platform/graphics/chromium/cc/CCSingleThreadProxy.cpp	(working copy)
@@ -344,11 +344,12 @@
 {
     ASSERT(CCProxy::isMainThread());
 
+    if (!m_layerTreeHost->initializeLayerRendererIfNeeded())
+        return false;
+
     CCTextureUpdater updater;
+    m_layerTreeHost->updateLayers(updater);
 
-    if (!m_layerTreeHost->updateLayers(updater))
-        return false;
-
     m_layerTreeHost->willCommit();
     doCommit(updater);
     bool result = doComposite();