CrOS: Set max frames pending for UI from command line.

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/auto_reset.h"
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "cc/context_provider.h"
@@ skipping 1022 matching lines @@
 {
     TRACE_EVENT0("cc", "ThreadProxy::initializeRendererOnImplThread");
     DCHECK(IsImplThread());
     DCHECK(m_outputSurfaceBeforeInitializationOnImplThread.get());
     *initializeSucceeded = m_layerTreeHostImpl->initializeRenderer(m_outputSurfaceBeforeInitializationOnImplThread.Pass());
     if (*initializeSucceeded) {
         *capabilities = m_layerTreeHostImpl->rendererCapabilities();
         m_schedulerOnImplThread->setSwapBuffersCompleteSupported(
                 capabilities->using_swap_complete_callback);
 
-        int maxFramesPending = FrameRateController::kDefaultMaxFramesPending;
+        int maxFramesPending = m_layerTreeHostImpl->outputSurface()->capabilities().max_frames_pending;

[DaveMoore, 2013/03/13 17:49:06]

Nit: Line length

[jonathan.backer, 2013/03/13 18:00:25]

cc is a mix of WK and Cr style (currently being scripted to match Cr style).
This style (> 80 characters with 4 char indent) matches this block.

+        if (maxFramesPending <= 0)
+            maxFramesPending = FrameRateController::kDefaultMaxFramesPending;
         if (m_layerTreeHostImpl->outputSurface()->capabilities().has_parent_compositor)
             maxFramesPending = 1;
         m_schedulerOnImplThread->setMaxFramesPending(maxFramesPending);
     }
 
     completion->signal();
 }
 
 void ThreadProxy::layerTreeHostClosedOnImplThread(CompletionEvent* completion)
 {
@@ skipping 175 matching lines @@
 
 void ThreadProxy::renewTreePriorityOnImplThread()
 {
     DCHECK(m_renewTreePriorityOnImplThreadPending);
     m_renewTreePriorityOnImplThreadPending = false;
 
     renewTreePriority();
 }
 
 }  // namespace cc