Added stub MediaSourcePlayer for developing behind the flag

media/base/android/media_player_android.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/android/media_player_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 12 matching lines @@
       manager_(manager),
       frame_url_(frame_url),
       is_audible_(false),
       weak_factory_(this) {
   listener_.reset(new MediaPlayerListener(base::ThreadTaskRunnerHandle::Get(),
                                           weak_factory_.GetWeakPtr()));
 }
 
 MediaPlayerAndroid::~MediaPlayerAndroid() {}
 
+// For most subclasses we can delete on the caller thread.
+void MediaPlayerAndroid::DeleteOnCorrectThread() {
+  delete this;
+}
+
 GURL MediaPlayerAndroid::GetUrl() {
   return GURL();
 }
 
 GURL MediaPlayerAndroid::GetFirstPartyForCookies() {
   return GURL();
 }
 
 void MediaPlayerAndroid::SetCdm(BrowserCdm* /* cdm */) {
   // Players that support EME should override this.
@@ skipping 31 matching lines @@
   jobject j_context = base::android::GetApplicationContext();
   DCHECK(j_context);
 
   listener_->CreateMediaPlayerListener(j_context, j_media_player);
 }
 
 void MediaPlayerAndroid::DetachListener() {
   listener_->ReleaseMediaPlayerListenerResources();
 }
 
+void MediaPlayerAndroid::DestroyListenerOnUIThread() {
+  weak_factory_.InvalidateWeakPtrs();
+  listener_.reset();
+}
+
 void MediaPlayerAndroid::SetAudible(bool is_audible) {
   if (is_audible_ != is_audible) {
     is_audible_ = is_audible;
     manager_->OnAudibleStateChanged(player_id(), is_audible_);
   }
 }
 
 }  // namespace media