Remove SendBeginFramesToChildren plumbing

cc/scheduler/scheduler_state_machine_unittest.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/scheduler/scheduler_state_machine.h"
 
 #include <stddef.h>
 
 #include "base/trace_event/trace_event.h"
 #include "cc/scheduler/scheduler.h"
@@ skipping 2042 matching lines @@
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_FALSE(state.ShouldTriggerBeginImplFrameDeadlineImmediately());
 
   state.SetBeginFrameSourcePaused(true);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.PendingActivationsShouldBeForced());
   EXPECT_TRUE(state.ShouldTriggerBeginImplFrameDeadlineImmediately());
 }
 
-TEST(SchedulerStateMachineTest, TestForwardBeginFramesToChildren) {
-  SchedulerSettings settings;
-  StateMachine state(settings);
-  SET_UP_STATE(state)
-
-  EXPECT_FALSE(state.BeginFrameNeeded());
-  state.SetChildrenNeedBeginFrames(true);
-  EXPECT_TRUE(state.BeginFrameNeeded());
-}
-
 TEST(SchedulerStateMachineTest, TestDeferCommit) {
   SchedulerSettings settings;
   StateMachine state(settings);
   SET_UP_STATE(state)
 
   state.SetDeferCommits(true);
 
   state.SetNeedsBeginMainFrame();
   EXPECT_FALSE(state.BeginFrameNeeded());
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
@@ skipping 82 matching lines @@
   state.OnBeginImplFrameDeadline();
   state.OnBeginImplFrameIdle();
 
   // The scheduler should begin the output surface creation now.
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_BEGIN_OUTPUT_SURFACE_CREATION);
 }
 
 }  // namespace
 }  // namespace cc