Add BeginFrameObserverProxy

cc/scheduler/scheduler_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.h"
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 389 matching lines @@
   scheduler_->SetCanDraw(true);
 
   EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client_);
   client_->Reset();
   scheduler_->DidCreateAndInitializeOutputSurface();
   EXPECT_NO_ACTION(client_);
 }
 
 TEST_F(SchedulerTest, SendBeginFramesToChildren) {
   scheduler_settings_.use_external_begin_frame_source = true;
-  scheduler_settings_.forward_begin_frames_to_children = true;
   SetUpScheduler(true);
 
   EXPECT_FALSE(client_->begin_frame_is_sent_to_children());
   scheduler_->SetNeedsCommit();
   EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
   EXPECT_TRUE(client_->needs_begin_frames());
 
   scheduler_->SetChildrenNeedBeginFrames(true);
 
   client_->Reset();
   EXPECT_SCOPED(AdvanceFrame());
   EXPECT_TRUE(client_->begin_frame_is_sent_to_children());
   EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
   EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
   EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
   EXPECT_TRUE(client_->needs_begin_frames());
 }
 
 TEST_F(SchedulerTest, SendBeginFramesToChildrenWithoutCommit) {
   scheduler_settings_.use_external_begin_frame_source = true;
-  scheduler_settings_.forward_begin_frames_to_children = true;
   SetUpScheduler(true);
 
   EXPECT_FALSE(client_->needs_begin_frames());
   scheduler_->SetChildrenNeedBeginFrames(true);
   EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
   EXPECT_TRUE(client_->needs_begin_frames());
 
   client_->Reset();
   EXPECT_SCOPED(AdvanceFrame());
   EXPECT_TRUE(client_->begin_frame_is_sent_to_children());
@@ skipping 1797 matching lines @@
   client_->Reset();
 
   task_runner().RunPendingTasks();  // Run posted deadline.
   EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
   EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 1, 2);
   client_->Reset();
 }
 
 }  // namespace
 }  // namespace cc