Replace Pipeline::kEnded state and HasEnded() methods with renderer-specific bools.

media/base/media_log.cc

Index: media/base/media_log.cc
diff --git a/media/base/media_log.cc b/media/base/media_log.cc
index d52c24b712ce181f3377def5dfe1da136e2b786a..6a24afa42544e847ad7a3260b82fda7a5952b660 100644
--- a/media/base/media_log.cc
+++ b/media/base/media_log.cc
@@ -46,8 +46,10 @@ const char* MediaLog::EventTypeToString(MediaLogEvent::Type type) {
       return "TOTAL_BYTES_SET";
     case MediaLogEvent::NETWORK_ACTIVITY_SET:
       return "NETWORK_ACTIVITY_SET";
-    case MediaLogEvent::ENDED:
-      return "ENDED";
+    case MediaLogEvent::AUDIO_ENDED:
+      return "AUDIO_ENDED";
+    case MediaLogEvent::VIDEO_ENDED:
+      return "VIDEO_ENDED";
     case MediaLogEvent::AUDIO_RENDERER_DISABLED:
       return "AUDIO_RENDERER_DISABLED";
     case MediaLogEvent::BUFFERED_EXTENTS_CHANGED:
@@ -81,8 +83,6 @@ const char* MediaLog::PipelineStateToString(Pipeline::State state) {
       return "starting";
     case Pipeline::kStarted:
       return "started";
-    case Pipeline::kEnded:
-      return "ended";
     case Pipeline::kStopping:
       return "stopping";
     case Pipeline::kStopped: