Remove media::FilterCollection::Clear() because no one calls it.

Review URL: https://codereview.chromium.org/14195007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@194675 0039d316-1c4b-4281-b951-d872f2087c98

media/base/filter_collection.cc

@@ -42,12 +42,6 @@ scoped_ptr<VideoRenderer> FilterCollection::GetVideoRenderer() {
   return video_renderer_.Pass();
 }
 
-void FilterCollection::Clear() {
-  video_decoders_.clear();
-  audio_renderer_.reset();
-  video_renderer_.reset();
-}
-
 FilterCollection::VideoDecoderList* FilterCollection::GetVideoDecoders() {
   return &video_decoders_;
 }

media/base/filter_collection.h

@@ -39,9 +39,6 @@ class MEDIA_EXPORT FilterCollection {
   void SetVideoRenderer(scoped_ptr<VideoRenderer> video_renderer);
   scoped_ptr<VideoRenderer> GetVideoRenderer();
 
-  // Remove remaining filters.
-  void Clear();
-
   VideoDecoderList* GetVideoDecoders();
 
  private: