Roll FFmpeg for M45.

media/renderers/renderer_impl.cc

Index: media/renderers/renderer_impl.cc
diff --git a/media/renderers/renderer_impl.cc b/media/renderers/renderer_impl.cc
index 8efe432a7ccd64f8fb5dc982ff2a17b415fbe05d..63c4a5f7a1f9c059bd058fc187c6ef57e3508001 100644
--- a/media/renderers/renderer_impl.cc
+++ b/media/renderers/renderer_impl.cc
@@ -238,8 +238,15 @@ bool RendererImpl::GetWallClockTimes(
   // TODO(scherkus): Currently called from VideoRendererImpl's internal thread,
   // which should go away at some point http://crbug.com/110814
   if (clockless_video_playback_enabled_for_testing_) {
-    *wall_clock_times = std::vector<base::TimeTicks>(media_timestamps.size(),
-                                                     base::TimeTicks::Now());
+    if (media_timestamps.empty()) {
+      *wall_clock_times = std::vector<base::TimeTicks>(1,

[DaleCurtis, 2015/07/01 21:42:29]

wall clock times should be empty, so add a DCHECK(wall_clock_times->empty()) at
l.241 and then:

wall_clock_times->push_back(now);

ditto for below:

push_back(0 + media_time);

+                                                       base::TimeTicks::Now());
+    } else {
+      *wall_clock_times = std::vector<base::TimeTicks>();
+      for (auto const &media_time : media_timestamps) {
+        wall_clock_times->push_back(base::TimeTicks() + media_time);
+      }
+    }
     return true;
   }