Remove gfx::FrameTime for a single clock source

cc/trees/thread_proxy.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/trees/thread_proxy.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 10 matching lines @@
 #include "cc/quads/draw_quad.h"
 #include "cc/resources/prioritized_resource_manager.h"
 #include "cc/scheduler/commit_earlyout_reason.h"
 #include "cc/scheduler/delay_based_time_source.h"
 #include "cc/scheduler/scheduler.h"
 #include "cc/trees/blocking_task_runner.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/scoped_abort_remaining_swap_promises.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
-#include "ui/gfx/frame_time.h"
 
 namespace cc {
 
 namespace {
 
 // Measured in seconds.
 const double kSmoothnessTakesPriorityExpirationDelay = 0.25;
 
 unsigned int nextBeginFrameId = 0;
 
@@ skipping 1365 matching lines @@
       FROM_HERE, base::Bind(&ThreadProxy::DidCompletePageScaleAnimation,
                             main_thread_weak_ptr_));
 }
 
 void ThreadProxy::OnDrawForOutputSurface() {
   DCHECK(IsImplThread());
   impl().scheduler->OnDrawForOutputSurface();
 }
 
 }  // namespace cc