Hook up RendererMediaSessionManager with browser side

content/browser/media/android/browser_media_session_manager.cc

+// 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 "content/browser/media/android/browser_media_session_manager.h"
+
+#include "content/common/media/media_session_messages_android.h"
+#include "content/public/browser/render_frame_host.h"
+
+namespace content {
+
+BrowserMediaSessionManager::BrowserMediaSessionManager(
+    RenderFrameHost* render_frame_host)
+    : render_frame_host_(render_frame_host) {}
+
+void BrowserMediaSessionManager::OnActivate(int session_id, int activation_id) {

[mlamouri (slow - plz ping), 2015/12/02 15:53:30]

nit: ditto

[davve, 2015/12/04 12:43:08]

Done.

+  NOTIMPLEMENTED();
+  Send(new MediaSessionMsg_DidActivate(GetRoutingID(), session_id,
+                                       activation_id, false));
+}
+
+void BrowserMediaSessionManager::OnDeactivate(int session_id,
+                                              int deactivation_id) {

[mlamouri (slow - plz ping), 2015/12/02 15:53:30]

nit: ditto

[davve, 2015/12/04 12:43:08]

Done.

+  NOTIMPLEMENTED();
+  Send(new MediaSessionMsg_DidDeactivate(GetRoutingID(), session_id,
+                                         deactivation_id));
+}
+
+int BrowserMediaSessionManager::GetRoutingID() const {
+  return render_frame_host_->GetRoutingID();
+}
+
+bool BrowserMediaSessionManager::Send(IPC::Message* msg) {
+  return render_frame_host_->Send(msg);
+}
+
+}  // namespace content