Create abstract interface for media::Pipeline.

content/renderer/media/render_media_log.cc

 // Copyright (c) 2012 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 "content/renderer/media/render_media_log.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
+#include "base/time/default_tick_clock.h"
 #include "content/common/view_messages.h"
 #include "content/public/renderer/render_thread.h"
 
 namespace {
 
 // Print an event to the chromium log.
 void Log(media::MediaLogEvent* event) {
   if (event->type == media::MediaLogEvent::PIPELINE_ERROR) {
     LOG(ERROR) << "MediaEvent: "
                << media::MediaLog::MediaEventToLogString(*event);
@@ skipping 82 matching lines @@
   tick_clock_.swap(tick_clock);
   last_ipc_send_time_ = tick_clock_->NowTicks();
 }
 
 void RenderMediaLog::SetTaskRunnerForTesting(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner) {
   task_runner_ = task_runner;
 }
 
 }  // namespace content