Revert of Introduce WebMediaSession

content/renderer/media/android/webmediasession_android.cc

Index: content/renderer/media/android/webmediasession_android.cc
diff --git a/content/renderer/media/android/webmediasession_android.cc b/content/renderer/media/android/webmediasession_android.cc
deleted file mode 100644
index 7977493cd4142143cb93b5af345abc36ca291541..0000000000000000000000000000000000000000
--- a/content/renderer/media/android/webmediasession_android.cc
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2015 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 "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "content/renderer/media/android/webmediasession_android.h"
-
-namespace content {
-
-void WebMediaSessionAndroid::activate(
-    blink::WebMediaSessionActivateCallback* raw_callback) {
-  NOTIMPLEMENTED();
-
-  scoped_ptr<blink::WebMediaSessionActivateCallback> callback(raw_callback);
-  callback->onError(blink::WebMediaSessionError::Activate);
-}
-
-void WebMediaSessionAndroid::deactivate(
-    blink::WebMediaSessionDeactivateCallback* raw_callback) {
-  NOTIMPLEMENTED();
-
-  scoped_ptr<blink::WebMediaSessionDeactivateCallback> callback(raw_callback);
-  callback->onSuccess();
-}
-
-}  // namespace content