cc: Remove retro frames from scheduler.

cc/surfaces/display_scheduler_unittest.cc

 // Copyright 2015 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/surfaces/display_scheduler.h"
 
 #include "base/logging.h"
 #include "base/test/null_task_runner.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 368 matching lines @@
   EXPECT_EQ(late_deadline, scheduler_->DesiredBeginFrameDeadlineTimeForTest());
 
   // Don't draw and swap in deadline while swap throttled.
   EXPECT_EQ(3, client_->draw_and_swap_count());
   scheduler_->BeginFrameDeadlineForTest();
   EXPECT_EQ(3, client_->draw_and_swap_count());
 
   // Deadline triggers normally once not swap throttled.
   // Damage from previous BeginFrame should cary over, so don't damage again.
   base::TimeTicks expected_deadline =
-      scheduler_->LastUsedBeginFrameArgs().deadline -
-      BeginFrameArgs::DefaultEstimatedParentDrawTime();
+      scheduler_->LastUsedBeginFrameArgs().deadline;
   scheduler_->DidSwapBuffersComplete();
   BeginFrameForTest();
   EXPECT_EQ(expected_deadline,
             scheduler_->DesiredBeginFrameDeadlineTimeForTest());
   // Still waiting for surface 2. Once it updates, deadline should trigger
   // immediately again.
   scheduler_->SurfaceDamaged(sid2);
   EXPECT_EQ(scheduler_->DesiredBeginFrameDeadlineTimeForTest(),
             base::TimeTicks());
   // Draw and swap now that we aren't throttled.
@@ skipping 36 matching lines @@
 
   scheduler_->SetRootSurfaceResourcesLocked(true);
   EXPECT_EQ(count++, scheduler_->scheduler_begin_frame_deadline_count());
 
   scheduler_->OutputSurfaceLost();
   EXPECT_EQ(count++, scheduler_->scheduler_begin_frame_deadline_count());
 }
 
 }  // namespace
 }  // namespace cc