Fix a bug that current time can go backwards when playing a video

content/renderer/media/android/webmediaplayer_android.cc

 // Copyright 2013 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/android/webmediaplayer_android.h"
 
 #include <limits>
 
 #include "base/android/build_info.h"
 #include "base/bind.h"
@@ skipping 899 matching lines @@
     video_weblayer_.reset(new cc_blink::WebLayerImpl(
         cc::VideoLayer::Create(cc_blink::WebLayerImpl::LayerSettings(), this,
                                media::VIDEO_ROTATION_0)));
     client_->setWebLayer(video_weblayer_.get());
   }
 }
 
 void WebMediaPlayerAndroid::OnTimeUpdate(base::TimeDelta current_timestamp,
                                          base::TimeTicks current_time_ticks) {
   DCHECK(main_thread_checker_.CalledOnValidThread());
+
+  if (seeking())
+    return;
+
   // Compensate the current_timestamp with the IPC latency.
   base::TimeDelta lower_bound =
       base::TimeTicks::Now() - current_time_ticks + current_timestamp;
   base::TimeDelta upper_bound = lower_bound;
   // We should get another time update in about |kTimeUpdateInterval|
   // milliseconds.
   if (is_playing_) {
     upper_bound += base::TimeDelta::FromMilliseconds(
         media::kTimeUpdateInterval);
   }
   // if the lower_bound is smaller than the current time, just use the current
   // time so that the timer is always progressing.
   lower_bound =
-      std::min(lower_bound, base::TimeDelta::FromSecondsD(currentTime()));
+      std::max(lower_bound, base::TimeDelta::FromSecondsD(currentTime()));
+  if (lower_bound > upper_bound)
+    upper_bound = lower_bound;
   interpolator_.SetBounds(lower_bound, upper_bound);
 }
 
 void WebMediaPlayerAndroid::OnConnectedToRemoteDevice(
     const std::string& remote_playback_message) {
   DCHECK(main_thread_checker_.CalledOnValidThread());
   DCHECK(!media_source_delegate_);
   DrawRemotePlaybackText(remote_playback_message);
   is_remote_ = true;
   SetNeedsEstablishPeer(false);
@@ skipping 944 matching lines @@
 
   bool is_hls = IsHLSStream();
   UMA_HISTOGRAM_BOOLEAN("Media.Android.IsHttpLiveStreamingMedia", is_hls);
   if (is_hls) {
     media::RecordOriginOfHLSPlayback(
         GURL(frame_->document().securityOrigin().toString()));
   }
 }
 
 }  // namespace content