Remove MessageLoop methods from Filter interface

media/filters/omx_video_decoder.cc

Index: media/filters/omx_video_decoder.cc
diff --git a/media/filters/omx_video_decoder.cc b/media/filters/omx_video_decoder.cc
index 15ba4f1234076f29c18a85a06362fd749d31b7f0..f02bea0c5fb1f4fbecf79e2fb41e65e6e81d74a2 100644
--- a/media/filters/omx_video_decoder.cc
+++ b/media/filters/omx_video_decoder.cc
@@ -16,8 +16,10 @@
 namespace media {
 
 OmxVideoDecoder::OmxVideoDecoder(
+    MessageLoop* message_loop,
     VideoDecodeContext* context)
-    : decode_engine_(new OmxVideoDecodeEngine()),
+    : message_loop_(message_loop),
+      decode_engine_(new OmxVideoDecodeEngine()),
       decode_context_(context),
       width_(0), height_(0) {
   DCHECK(decode_engine_.get());
@@ -234,6 +236,10 @@ void OmxVideoDecoder::DemuxCompleteTask(Buffer* buffer) {
                         &VideoDecodeEngine::ConsumeVideoSample, ref_buffer));
 }
 
+MessageLoop* OmxVideoDecoder::message_loop() {
+  return message_loop_;
+}
+
 }  // namespace media
 
 // Disable refcounting for the decode engine because it only lives on the