Update cc snapshot to WK r126941

cc/CCThreadProxy.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 "CCThreadProxy.h"
 
 #include "CCDelayBasedTimeSource.h"
 #include "CCDrawQuad.h"
@@ skipping 276 matching lines @@
 
     TRACE_EVENT0("cc", "CCThreadProxy::setNeedsCommit");
     m_commitRequested = true;
     CCProxy::implThread()->postTask(createCCThreadTask(this, &CCThreadProxy::setNeedsCommitOnImplThread));
 }
 
 void CCThreadProxy::didLoseContextOnImplThread()
 {
     ASSERT(isImplThread());
     TRACE_EVENT0("cc", "CCThreadProxy::didLoseContextOnImplThread");
+    m_currentTextureUpdateControllerOnImplThread.clear();
     m_schedulerOnImplThread->didLoseContext();
 }
 
 void CCThreadProxy::onSwapBuffersCompleteOnImplThread()
 {
     ASSERT(isImplThread());
     TRACE_EVENT0("cc", "CCThreadProxy::onSwapBuffersCompleteOnImplThread");
     m_schedulerOnImplThread->didSwapBuffersComplete();
     m_mainThreadProxy->postTask(createCCThreadTask(this, &CCThreadProxy::didCompleteSwapBuffers));
 }
@@ skipping 285 matching lines @@
 {
     TRACE_EVENT0("cc", "CCThreadProxy::scheduledActionUpdateMoreResources");
     ASSERT(m_currentTextureUpdateControllerOnImplThread);
     m_currentTextureUpdateControllerOnImplThread->updateMoreTextures(monotonicTimeLimit);
 }
 
 void CCThreadProxy::scheduledActionCommit()
 {
     TRACE_EVENT0("cc", "CCThreadProxy::scheduledActionCommit");
     ASSERT(isImplThread());
-    ASSERT(m_currentTextureUpdateControllerOnImplThread);
-    ASSERT(!m_currentTextureUpdateControllerOnImplThread->hasMoreUpdates());
+    ASSERT(!hasMoreResourceUpdates());
     ASSERT(m_commitCompletionEventOnImplThread);
 
     m_currentTextureUpdateControllerOnImplThread.clear();
 
     m_layerTreeHostImpl->beginCommit();
 
     m_layerTreeHost->beginCommitOnImplThread(m_layerTreeHostImpl.get());
     m_layerTreeHost->finishCommitOnImplThread(m_layerTreeHostImpl.get());
 
     if (m_resetContentsTexturesPurgedAfterCommitOnImplThread) {
@@ skipping 269 matching lines @@
 }
 
 void CCThreadProxy::implSideRenderingStatsOnImplThread(CCCompletionEvent* completion, CCRenderingStats* stats)
 {
     ASSERT(isImplThread());
     m_layerTreeHostImpl->renderingStats(*stats);
     completion->signal();
 }
 
 } // namespace WebCore