Replace erroneous use of base::Time with base::TimeTicks throughout media code.

media/base/pipeline.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 "media/base/pipeline.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 21 matching lines @@
 Pipeline::Pipeline(const scoped_refptr<base::MessageLoopProxy>& message_loop,
                    MediaLog* media_log)
     : message_loop_(message_loop),
       media_log_(media_log),
       running_(false),
       did_loading_progress_(false),
       total_bytes_(0),
       natural_size_(0, 0),
       volume_(1.0f),
       playback_rate_(0.0f),
-      clock_(new Clock(&default_clock_)),
+      clock_(new Clock(&default_tick_clock_)),
       waiting_for_clock_update_(false),
       status_(PIPELINE_OK),
       has_audio_(false),
       has_video_(false),
       state_(kCreated),
       audio_ended_(false),
       video_ended_(false),
       audio_disabled_(false),
       demuxer_(NULL),
-      creation_time_(base::Time::Now()) {
+      creation_time_(default_tick_clock_.NowTicks()) {
   media_log_->AddEvent(media_log_->CreatePipelineStateChangedEvent(kCreated));
   media_log_->AddEvent(
       media_log_->CreateEvent(MediaLogEvent::PIPELINE_CREATED));
 }
 
 Pipeline::~Pipeline() {
   DCHECK(thread_checker_.CalledOnValidThread())
       << "Pipeline must be destroyed on same thread that created it";
   DCHECK(!running_) << "Stop() must complete before destroying object";
   DCHECK(stop_cb_.is_null());
@@ skipping 143 matching lines @@
   clock_.reset(clock);
 }
 
 void Pipeline::SetErrorForTesting(PipelineStatus status) {
   SetError(status);
 }
 
 void Pipeline::SetState(State next_state) {
   if (state_ != kStarted && next_state == kStarted &&
       !creation_time_.is_null()) {
-    UMA_HISTOGRAM_TIMES(
-        "Media.TimeToPipelineStarted", base::Time::Now() - creation_time_);
-    creation_time_ = base::Time();
+    UMA_HISTOGRAM_TIMES("Media.TimeToPipelineStarted",
+                        default_tick_clock_.NowTicks() - creation_time_);
+    creation_time_ = base::TimeTicks();
   }
 
   DVLOG(2) << GetStateString(state_) << " -> " << GetStateString(next_state);
 
   state_ = next_state;
   media_log_->AddEvent(media_log_->CreatePipelineStateChangedEvent(next_state));
 }
 
 #define RETURN_STRING(state) case state: return #state;
 
@@ skipping 709 matching lines @@
 void Pipeline::StartClockIfWaitingForTimeUpdate_Locked() {
   lock_.AssertAcquired();
   if (!waiting_for_clock_update_)
     return;
 
   waiting_for_clock_update_ = false;
   clock_->Play();
 }
 
 }  // namespace media