Hook up RendererMediaSessionManager with browser side

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
index b68e2bbfbc2df26b70f01bfcd4ebe066be36e910..099f616ae53c2eb28539188e2c1b5fdc9991b547 100644
--- a/content/renderer/media/android/webmediasession_android.cc
+++ b/content/renderer/media/android/webmediasession_android.cc
@@ -12,7 +12,7 @@ namespace content {
 
 WebMediaSessionAndroid::WebMediaSessionAndroid(
     RendererMediaSessionManager* session_manager)
-    : session_manager_(session_manager) {
+    : session_manager_(session_manager), next_request_id_(0) {
   DCHECK(session_manager_);
   session_id_ = session_manager_->RegisterMediaSession(this);
 }
@@ -23,18 +23,39 @@ WebMediaSessionAndroid::~WebMediaSessionAndroid() {
 
 void WebMediaSessionAndroid::activate(
     blink::WebMediaSessionActivateCallback* raw_callback) {
-  NOTIMPLEMENTED();
+  int request_id = next_request_id_++;
+  actions_[request_id].activate = raw_callback;
 
-  scoped_ptr<blink::WebMediaSessionActivateCallback> callback(raw_callback);
-  callback->onError(blink::WebMediaSessionError::Activate);
+  session_manager_->Activate(session_id_, request_id);
 }
 
 void WebMediaSessionAndroid::deactivate(
     blink::WebMediaSessionDeactivateCallback* raw_callback) {
-  NOTIMPLEMENTED();
+  int request_id = next_request_id_++;
+  actions_[request_id].deactivate = raw_callback;
+  session_manager_->Deactivate(session_id_, request_id);
+}
+
+void WebMediaSessionAndroid::OnDidActivate(int request_id, bool success) {
+  auto iter = actions_.find(request_id);
+  if (iter != actions_.end()) {
+    if (success)
+      iter->second.activate->onSuccess();
+    else
+      iter->second.activate->onError(
+          blink::WebMediaSessionError(blink::WebMediaSessionError::Activate));
+    delete iter->second.activate;
+    actions_.erase(iter);
+  }
+}
 
-  scoped_ptr<blink::WebMediaSessionDeactivateCallback> callback(raw_callback);
-  callback->onSuccess();
+void WebMediaSessionAndroid::OnDidDeactivate(int request_id) {
+  auto iter = actions_.find(request_id);
+  if (iter != actions_.end()) {
+    iter->second.deactivate->onSuccess();
+    delete iter->second.deactivate;
+    actions_.erase(iter);
+  }
 }
 
 }  // namespace content