cc: Scheduler will never process a commit until it receives a vsync tick.

cc/CCThreadProxy.cpp

Index: cc/CCThreadProxy.cpp
diff --git a/cc/CCThreadProxy.cpp b/cc/CCThreadProxy.cpp
index e5802f7b83d11dd48e759af8d3394afdc908a27b..009ac1cd17dbcc1ac1748eb8fe1287da4c0bc232 100644
--- a/cc/CCThreadProxy.cpp
+++ b/cc/CCThreadProxy.cpp
@@ -14,7 +14,6 @@
 #include "CCLayerTreeHost.h"
 #include "CCScheduler.h"
 #include "CCScopedThreadProxy.h"
-#include "CCTextureUpdateController.h"
 #include "CCThreadTask.h"
 #include "TraceEvent.h"
 #include <public/WebSharedGraphicsContext3D.h>
@@ -594,10 +593,12 @@ void CCThreadProxy::beginFrameCompleteOnImplThread(CCCompletionEvent* completion
         setNeedsCommitOnImplThread();
     }
 
-    m_currentTextureUpdateControllerOnImplThread = CCTextureUpdateController::create(CCProxy::implThread(), queue, m_layerTreeHostImpl->resourceProvider(), m_layerTreeHostImpl->renderer()->textureCopier(), m_layerTreeHostImpl->renderer()->textureUploader());
+    bool hasResourceUpdates = queue->hasMoreUpdates();
+    if (hasResourceUpdates)
+        m_currentTextureUpdateControllerOnImplThread = CCTextureUpdateController::create(this, CCProxy::implThread(), queue, m_layerTreeHostImpl->resourceProvider(), m_layerTreeHostImpl->renderer()->textureCopier(), m_layerTreeHostImpl->renderer()->textureUploader());
     m_commitCompletionEventOnImplThread = completion;
 
-    m_schedulerOnImplThread->beginFrameComplete();
+    m_schedulerOnImplThread->beginFrameComplete(hasResourceUpdates);
 }
 
 void CCThreadProxy::beginFrameAbortedOnImplThread()
@@ -610,13 +611,6 @@ void CCThreadProxy::beginFrameAbortedOnImplThread()
     m_schedulerOnImplThread->beginFrameAborted();
 }
 
-bool CCThreadProxy::hasMoreResourceUpdates() const
-{
-    if (!m_currentTextureUpdateControllerOnImplThread)
-        return false;
-    return m_currentTextureUpdateControllerOnImplThread->hasMoreUpdates();
-}
-
 void CCThreadProxy::scheduledActionUpdateMoreResources(double monotonicTimeLimit)
 {
     TRACE_EVENT0("cc", "CCThreadProxy::scheduledActionUpdateMoreResources");
@@ -628,7 +622,6 @@ void CCThreadProxy::scheduledActionCommit()
 {
     TRACE_EVENT0("cc", "CCThreadProxy::scheduledActionCommit");
     ASSERT(isImplThread());
-    ASSERT(!hasMoreResourceUpdates());
     ASSERT(m_commitCompletionEventOnImplThread);
 
     m_currentTextureUpdateControllerOnImplThread.clear();
@@ -768,6 +761,12 @@ CCScheduledActionDrawAndSwapResult CCThreadProxy::scheduledActionDrawAndSwapForc
     return scheduledActionDrawAndSwapInternal(true);
 }
 
+void CCThreadProxy::updateTexturesCompleted()
+{
+    ASSERT(isImplThread());
+    m_schedulerOnImplThread->updateResourcesComplete();
+}
+
 void CCThreadProxy::didCommitAndDrawFrame()
 {
     ASSERT(isMainThread());