cc: Set the max frames pending from the thread proxy.

cc/delegating_renderer.cc

 // Copyright 2012 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/delegating_renderer.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 111 matching lines @@
 }
 
 const RendererCapabilities& DelegatingRenderer::capabilities() const {
   return capabilities_;
 }
 
 void DelegatingRenderer::drawFrame(
     RenderPassList& render_passes_in_draw_order) {
   TRACE_EVENT0("cc", "DelegatingRenderer::drawFrame");
   NOTIMPLEMENTED();
+  render_passes_in_draw_order.clear();
 }
 
 bool DelegatingRenderer::swapBuffers() {
   return true;
 }
 
 void DelegatingRenderer::getFramebufferPixels(void *pixels,
                                               const gfx::Rect& rect) {
   NOTIMPLEMENTED();
 }
@@ skipping 14 matching lines @@
 
 void DelegatingRenderer::setVisible(bool visible) {
   visible_ = visible;
 }
 
 void DelegatingRenderer::onContextLost() {
   m_client->didLoseOutputSurface();
 }
 
 }  // namespace cc