Fix failing (flaky) LayerTreeHostTestLCDNotification test.

cc/test/layer_tree_test.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/test/layer_tree_test.h"
 
 #include "base/command_line.h"
 #include "cc/animation/animation.h"
 #include "cc/animation/animation_registrar.h"
 #include "cc/animation/layer_animation_controller.h"
@@ skipping 532 matching lines @@
       gfx::ScaleSize(root_bounds, layer_tree_host_->device_scale_factor()));
   layer_tree_host_->SetViewportSize(device_root_bounds);
 }
 
 void LayerTreeTest::Timeout() {
   timed_out_ = true;
   EndTest();
 }
 
 void LayerTreeTest::RealEndTest() {
-  if (layer_tree_host_ && proxy()->CommitPendingForTesting()) {
+  if (layer_tree_host_ && !timed_out_ &&
+      proxy()->MainFrameWillHappenForTesting()) {
     main_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&LayerTreeTest::RealEndTest, main_thread_weak_ptr_));
     return;
   }
 
   base::MessageLoop::current()->Quit();
 }
 
 void LayerTreeTest::DispatchAddAnimation(Layer* layer_to_receive_animation,
@@ skipping 133 matching lines @@
   return -1;
 }
 
 void LayerTreeTest::DestroyLayerTreeHost() {
   if (layer_tree_host_ && layer_tree_host_->root_layer())
     layer_tree_host_->root_layer()->SetLayerTreeHost(NULL);
   layer_tree_host_.reset();
 }
 
 }  // namespace cc