cc: Add main frame timing info to frame timing tracker.

cc/trees/layer_tree_host_impl_unittest.cc

Index: cc/trees/layer_tree_host_impl_unittest.cc
diff --git a/cc/trees/layer_tree_host_impl_unittest.cc b/cc/trees/layer_tree_host_impl_unittest.cc
index 14de9bf3712953bf0c67db9e3156dc7e2f7682c0..78228cbc7d054b3f6e029c9982290ec596c413c4 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -160,6 +160,9 @@ class LayerTreeHostImplTest : public testing::Test,
   void DidCompletePageScaleAnimationOnImplThread() override {
     did_complete_page_scale_animation_ = true;
   }
+  base::TimeTicks GetNextBeginImplFrameTimeIfRequested() const override {

[mithro-old, 2015/03/11 04:01:33]

If this method should never be called, then can you please use NOT_REACHED()
here rather than returning a random value which will make it hard to track down
issues in the future - otherwise we should figure out what the correct value is
to return.

[vmpstr, 2015/03/16 18:36:43]

I've added a NOTREACHED.

+    return base::TimeTicks();
+  }
 
   void set_reduce_memory_result(bool reduce_memory_result) {
     reduce_memory_result_ = reduce_memory_result;