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

media/filters/video_renderer_base.cc

Index: media/filters/video_renderer_base.cc
diff --git a/media/filters/video_renderer_base.cc b/media/filters/video_renderer_base.cc
index aab55e14b8dec3314caba54f417e5ff240cf6a2c..da5c3cdf8a8fd05e5db13500795559ed84b0d572 100644
--- a/media/filters/video_renderer_base.cc
+++ b/media/filters/video_renderer_base.cc
@@ -166,11 +166,6 @@ void VideoRendererBase::Initialize(const scoped_refptr<VideoDecoder>& decoder,
   init_cb.Run(PIPELINE_OK);
 }
 
-bool VideoRendererBase::HasEnded() {
-  base::AutoLock auto_lock(lock_);
-  return state_ == kEnded;
-}
-
 // PlatformThread::Delegate implementation.
 void VideoRendererBase::ThreadMain() {
   base::PlatformThread::SetName("CrVideoRenderer");