cc: Split animating and drawing into separate actions

cc/scheduler/scheduler.cc

Index: cc/scheduler/scheduler.cc
diff --git a/cc/scheduler/scheduler.cc b/cc/scheduler/scheduler.cc
index ce80784c638429f94b9b80aeab283adec3293689..73162f1eb0f5bd9a95b2d7bf59a393c20888209a 100644
--- a/cc/scheduler/scheduler.cc
+++ b/cc/scheduler/scheduler.cc
@@ -76,6 +76,11 @@ void Scheduler::SetNeedsRedraw() {
   ProcessScheduledActions();
 }
 
+void Scheduler::SetNeedsAnimate() {
+  state_machine_.SetNeedsAnimate();
+  ProcessScheduledActions();
+}
+
 void Scheduler::SetNeedsManageTiles() {
   DCHECK(!IsInsideAction(SchedulerStateMachine::ACTION_MANAGE_TILES));
   state_machine_.SetNeedsManageTiles();
@@ -361,6 +366,9 @@ void Scheduler::ProcessScheduledActions() {
     switch (action) {
       case SchedulerStateMachine::ACTION_NONE:
         break;
+      case SchedulerStateMachine::ACTION_ANIMATE:
+        client_->ScheduledActionAnimate();
+        break;
       case SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME:
         client_->ScheduledActionSendBeginMainFrame();
         break;