Don't spam the GPU process with memory usage stats

cc/thread_proxy.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 "cc/thread_proxy.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "cc/delay_based_time_source.h"
 #include "cc/draw_quad.h"
@@ skipping 368 matching lines @@
     if (m_currentResourceUpdateControllerOnImplThread.get())
         m_currentResourceUpdateControllerOnImplThread->discardUploadsToEvictedResources();
     return true;
 }
 
 void ThreadProxy::sendManagedMemoryStats()
 {
     DCHECK(isImplThread());
     if (!m_layerTreeHostImpl.get())
         return;
-    if (!m_layerTreeHostImpl->renderer())
-        return;
     if (!m_layerTreeHost->contentsTextureManager())
         return;
 
-    m_layerTreeHostImpl->renderer()->sendManagedMemoryStats(
+    m_layerTreeHostImpl->sendManagedMemoryStats(
         m_layerTreeHost->contentsTextureManager()->memoryVisibleBytes(),
         m_layerTreeHost->contentsTextureManager()->memoryVisibleAndNearbyBytes(),
         m_layerTreeHost->contentsTextureManager()->memoryUseBytes());
 }
 
 void ThreadProxy::setNeedsRedraw()
 {
     DCHECK(isMainThread());
     TRACE_EVENT0("cc", "ThreadProxy::setNeedsRedraw");
     Proxy::implThread()->postTask(base::Bind(&ThreadProxy::setFullRootLayerDamageOnImplThread, base::Unretained(this)));
@@ skipping 568 matching lines @@
 ThreadProxy::BeginFrameAndCommitState::BeginFrameAndCommitState()
     : memoryAllocationLimitBytes(0)
 {
 }
 
 ThreadProxy::BeginFrameAndCommitState::~BeginFrameAndCommitState()
 {
 }
 
 }  // namespace cc