Migrating MediaSession messages to mojo

content/renderer/media/android/renderer_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/renderer/media/android/renderer_media_session_manager.h"
-
-#include "base/logging.h"
-#include "base/optional.h"
-#include "content/common/media/media_metadata_sanitizer.h"
-#include "content/common/media/media_session_messages_android.h"
-#include "content/public/common/media_metadata.h"
-#include "content/public/renderer/render_thread.h"
-#include "content/renderer/media/android/webmediasession_android.h"
-
-namespace content {
-
-RendererMediaSessionManager::RendererMediaSessionManager(
-    RenderFrame* render_frame)
-    : RenderFrameObserver(render_frame),
-      next_session_id_(blink::WebMediaSession::DefaultID + 1) {}
-
-RendererMediaSessionManager::~RendererMediaSessionManager() {
-  DCHECK(sessions_.empty())
-      << "RendererMediaSessionManager is owned by RenderFrameImpl and is "
-         "destroyed only after all media sessions are destroyed.";
-}
-
-bool RendererMediaSessionManager::OnMessageReceived(const IPC::Message& msg) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(RendererMediaSessionManager, msg)
-    IPC_MESSAGE_HANDLER(MediaSessionMsg_DidActivate, OnDidActivate)
-    IPC_MESSAGE_HANDLER(MediaSessionMsg_DidDeactivate, OnDidDeactivate)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
-void RendererMediaSessionManager::OnDestruct() {
-  delete this;
-}
-
-int RendererMediaSessionManager::RegisterMediaSession(
-    WebMediaSessionAndroid* session) {
-  sessions_[next_session_id_] = session;
-  return next_session_id_++;
-}
-
-void RendererMediaSessionManager::UnregisterMediaSession(int session_id) {
-  sessions_.erase(session_id);
-}
-
-void RendererMediaSessionManager::Activate(
-    int session_id,
-    std::unique_ptr<blink::WebMediaSessionActivateCallback> callback) {
-  int request_id = pending_activation_requests_.Add(callback.release());
-  Send(new MediaSessionHostMsg_Activate(routing_id(), session_id, request_id));
-}
-
-void RendererMediaSessionManager::Deactivate(
-    int session_id,
-    std::unique_ptr<blink::WebMediaSessionDeactivateCallback> callback) {
-  int request_id = pending_deactivation_requests_.Add(callback.release());
-  Send(
-      new MediaSessionHostMsg_Deactivate(routing_id(), session_id, request_id));
-}
-
-void RendererMediaSessionManager::SetMetadata(
-    int session_id, const base::Optional<MediaMetadata>& metadata) {
-
-  // TODO(zqzhang): print a console warning when metadata is dirty. See
-  // https://crbug.com/625244.
-  Send(new MediaSessionHostMsg_SetMetadata(
-      routing_id(), session_id,
-      (!metadata.has_value() ||
-       MediaMetadataSanitizer::CheckSanity(metadata.value()))
-          ? metadata
-          : MediaMetadataSanitizer::Sanitize(metadata.value())));
-}
-
-void RendererMediaSessionManager::OnDidActivate(int request_id, bool success) {
-  DCHECK(pending_activation_requests_.Lookup(request_id)) << request_id;
-  blink::WebMediaSessionActivateCallback* callback =
-      pending_activation_requests_.Lookup(request_id);
-  if (success) {
-    callback->onSuccess();
-  } else {
-    callback->onError(
-        blink::WebMediaSessionError(blink::WebMediaSessionError::Activate));
-  }
-  pending_activation_requests_.Remove(request_id);
-}
-
-void RendererMediaSessionManager::OnDidDeactivate(int request_id) {
-  DCHECK(pending_deactivation_requests_.Lookup(request_id)) << request_id;
-  pending_deactivation_requests_.Lookup(request_id)->onSuccess();
-  pending_deactivation_requests_.Remove(request_id);
-}
-
-}  // namespace content