cc: Remove background ticking from LTHI.

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 342 matching lines @@
     // Consume any previous deadline first, if no deadline is currently
     // pending, ImplFrameDeadlinePending will return false straight away and we
     // will run no tasks.
     task_runner_->RunTasksWhile(client_->ImplFrameDeadlinePending(true));
     EXPECT_FALSE(scheduler_->BeginImplFrameDeadlinePending());
 
     // Send the next BeginFrame message if using an external source, otherwise
     // it will be already in the task queue.
     if (scheduler_->settings().use_external_begin_frame_source &&
         scheduler_->FrameProductionThrottled()) {
+      EXPECT_TRUE(client_->needs_begin_frames());
       SendNextBeginFrame();
     }
 
     if (!scheduler_->settings().using_synchronous_renderer_compositor) {
       // Then run tasks until new deadline is scheduled.
       EXPECT_TRUE(task_runner_->RunTasksWhile(
           client_->ImplFrameDeadlinePending(false)));
       EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
     }
   }
@@ skipping 1743 matching lines @@
   client_->Reset();
   EXPECT_SCOPED(AdvanceFrame());
   EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
   EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client_, 1, 2);
   EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
 
   client_->Reset();
   scheduler_->NotifyBeginMainFrameStarted();
   scheduler_->NotifyReadyToCommit();
   EXPECT_SINGLE_ACTION("ScheduledActionCommit", client_);
+  EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
 
   client_->Reset();
   scheduler_->SetVisible(false);
+  task_runner().RunPendingTasks();  // Run posted deadline.
+
   // Sync tree should be forced to activate.
-  EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 0, 2);
-  EXPECT_ACTION("ScheduledActionActivateSyncTree", client_, 1, 2);
+  EXPECT_ACTION("ScheduledActionActivateSyncTree", client_, 0, 3);
+  EXPECT_ACTION("SetNeedsBeginFrames(false)", client_, 1, 3);
+  EXPECT_ACTION("SendBeginMainFrameNotExpectedSoon", client_, 2, 3);
 }
 
 // Tests to ensure frame sources can be successfully changed while drawing.
 TEST_F(SchedulerTest, SwitchFrameSourceToUnthrottled) {
   scheduler_settings_.use_external_begin_frame_source = true;
   SetUpScheduler(true);
 
   // SetNeedsRedraw should begin the frame on the next BeginImplFrame.
   scheduler_->SetNeedsRedraw();
   EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client_);
@@ skipping 290 matching lines @@
 
   // At the next BeginFrame, authoritative interval is used instead of previous
   // interval.
   EXPECT_NE(initial_interval, scheduler_->begin_impl_frame_args().interval);
   EXPECT_EQ(authoritative_interval,
             scheduler_->begin_impl_frame_args().interval);
 }
 
 }  // namespace
 }  // namespace cc