chromecast/renderer/cast_render_process_observer.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chromecast/renderer/cast_render_process_observer.h"
   6
   7 #include "chromecast/renderer/media/cma_message_filter_proxy.h"
   8 #include "content/public/renderer/render_thread.h"
   9
  10 namespace chromecast {
  11 namespace shell {
  12
  13 CastRenderProcessObserver::CastRenderProcessObserver() {
  14   content::RenderThread* thread = content::RenderThread::Get();
  15   thread->AddObserver(this);
  16   CreateCustomFilters();
  17 }
  18
  19 CastRenderProcessObserver::~CastRenderProcessObserver() {
  20   // CastRenderProcessObserver outlives content::RenderThread.
  21   // No need to explicitly call RemoveObserver in teardown.
  22 }
  23
  24 void CastRenderProcessObserver::CreateCustomFilters() {
  25 #if !defined(OS_ANDROID)
  26   content::RenderThread* thread = content::RenderThread::Get();
  27   cma_message_filter_proxy_ =
  28       new media::CmaMessageFilterProxy(thread->GetIOMessageLoopProxy());
  29   thread->AddFilter(cma_message_filter_proxy_.get());
  30 #endif  // !defined(OS_ANDROID)
  31 }
  32
  33 void CastRenderProcessObserver::OnRenderProcessShutdown() {
  34 #if !defined(OS_ANDROID)
  35   content::RenderThread* thread = content::RenderThread::Get();
  36   if (cma_message_filter_proxy_.get()) {
  37     thread->RemoveFilter(cma_message_filter_proxy_.get());
  38     cma_message_filter_proxy_ = NULL;
  39   }
  40 #endif  // !defined(OS_ANDROID)
  41 }
  42
  43 }  // namespace shell
  44 }  // namespace chromecast