cc: Never block on uploads from previous frame and increase max pending uploads.

cc/CCLayerTreeHostImpl.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 "CCLayerTreeHostImpl.h"
 
 #include "base/basictypes.h"
 #include "CCAppendQuadsData.h"
@@ skipping 11 matching lines @@
 #include "CCPageScaleAnimation.h"
 #include "CCPrioritizedTextureManager.h"
 #include "CCRenderPassDrawQuad.h"
 #include "CCRendererGL.h"
 #include "CCRendererSoftware.h"
 #include "CCRenderingStats.h"
 #include "CCScrollbarAnimationController.h"
 #include "CCScrollbarLayerImpl.h"
 #include "CCSettings.h"
 #include "CCSingleThreadProxy.h"
+#include "TextureUploader.h"
 #include "TraceEvent.h"
 #include <wtf/CurrentTime.h>
 #include <algorithm>
 
 using WebKit::WebTransformationMatrix;
 
 namespace {
 
 void didVisibilityChange(cc::CCLayerTreeHostImpl* id, bool visible)
 {
@@ skipping 536 matching lines @@
     // The next frame should start by assuming nothing has changed, and changes are noted as they occur.
     for (unsigned int i = 0; i < frame.renderSurfaceLayerList->size(); i++)
         (*frame.renderSurfaceLayerList)[i]->renderSurface()->damageTracker()->didDrawDamagedArea();
     m_rootLayerImpl->resetAllChangeTrackingForSubtree();
 }
 
 void CCLayerTreeHostImpl::didDrawAllLayers(const FrameData& frame)
 {
     for (size_t i = 0; i < frame.willDrawLayers.size(); ++i)
         frame.willDrawLayers[i]->didDraw(m_resourceProvider.get());
+
+    // Once all layers have been drawn, pending texture uploads should no
+    // longer block future uploads.
+    m_resourceProvider->textureUploader()->markPendingUploadsAsNonBlocking();
 }
 
 void CCLayerTreeHostImpl::finishAllRendering()
 {
     if (m_renderer)
         m_renderer->finish();
 }
 
 bool CCLayerTreeHostImpl::isContextLost()
 {
@@ skipping 710 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