HACK: Drop frame rate of Renderer.

cc/scheduler/scheduler.cc

Index: cc/scheduler/scheduler.cc
diff --git a/cc/scheduler/scheduler.cc b/cc/scheduler/scheduler.cc
index 2288169ecde077c80dc44fe911097a87924f1869..ded29bfbc3b3d6831f99b89077b9e0af3c8c9647 100644
--- a/cc/scheduler/scheduler.cc
+++ b/cc/scheduler/scheduler.cc
@@ -66,7 +66,8 @@ Scheduler::Scheduler(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
     scoped_ptr<BeginFrameSource> external_begin_frame_source,
     SchedulerFrameSourcesConstructor* frame_sources_constructor)
-    : frame_source_(),
+    : begin_frame_count_(0),
+      frame_source_(),
       primary_frame_source_(NULL),
       primary_frame_source_internal_(external_begin_frame_source.Pass()),
       vsync_observer_(NULL),
@@ -340,6 +341,15 @@ void Scheduler::SetupPollingMechanisms() {
 bool Scheduler::OnBeginFrameMixInDelegate(const BeginFrameArgs& args) {
   TRACE_EVENT1("cc,benchmark", "Scheduler::BeginFrame", "args", args.AsValue());
 
+  bool in_renderer = !settings_.main_thread_should_always_be_low_latency;
+  if (in_renderer) {
+    const int kFramesToSkip = 1;
+    begin_frame_count_++;
+    if (begin_frame_count_ <= kFramesToSkip)
+      return false;
+    begin_frame_count_ = 0;
+  }
+
   // Deliver BeginFrames to children.
   if (state_machine_.children_need_begin_frames()) {
     BeginFrameArgs adjusted_args_for_children(args);