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

cc/thread_proxy.cc

Index: cc/thread_proxy.cc
diff --git a/cc/thread_proxy.cc b/cc/thread_proxy.cc
index 2618400e9892c986af41d146b1cbfe0d694235b1..edf1abdd9ff6bae2f629f971edda759bafa4ca6a 100644
--- a/cc/thread_proxy.cc
+++ b/cc/thread_proxy.cc
@@ -946,6 +946,11 @@ void ThreadProxy::initializeRendererOnImplThread(CompletionEvent* completion, bo
         *capabilities = m_layerTreeHostImpl->rendererCapabilities();
         m_schedulerOnImplThread->setSwapBuffersCompleteSupported(
                 capabilities->usingSwapCompleteCallback);
+
+        int maxFramesPending = FrameRateController::kDefaultMaxFramesPending;
+        if (m_layerTreeHostImpl->outputSurface()->Capabilities().has_parent_compositor)
+            maxFramesPending = 1;
+        m_schedulerOnImplThread->setMaxFramesPending(maxFramesPending);
     }
 
     completion->signal();