Part 2: Plumb render view ID to content::MediaObserver

content/browser/renderer_host/media/audio_renderer_host_unittest.cc

 // Copyright (c) 2012 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/bind.h"
 #include "base/environment.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/sync_socket.h"
@@ skipping 14 matching lines @@
 using ::testing::InSequence;
 using ::testing::InvokeWithoutArgs;
 using ::testing::Return;
 using ::testing::SaveArg;
 using ::testing::SetArgumentPointee;
 using content::BrowserThread;
 
 using content::BrowserThreadImpl;
 
 static const int kStreamId = 50;
+static const int kRenderProcessId = 1;
 static const int kRenderViewId = -2;
 
 static bool IsRunningHeadless() {
   scoped_ptr<base::Environment> env(base::Environment::Create());
   if (env->HasVar("CHROME_HEADLESS"))
     return true;
   return false;
 }
 
 class MockAudioRendererHost : public AudioRendererHost {
  public:
   explicit MockAudioRendererHost(
       media::AudioManager* audio_manager,
       content::MediaObserver* media_observer)
-      : AudioRendererHost(audio_manager, media_observer),
+      : AudioRendererHost(kRenderProcessId, audio_manager, media_observer),
         shared_memory_length_(0) {
   }
 
   // A list of mock methods.
   MOCK_METHOD2(OnStreamCreated,
                void(int stream_id, int length));
   MOCK_METHOD1(OnStreamPlaying, void(int stream_id));
   MOCK_METHOD1(OnStreamPaused, void(int stream_id));
   MOCK_METHOD1(OnStreamError, void(int stream_id));
   MOCK_METHOD2(OnStreamVolume, void(int stream_id, double volume));
@@ skipping 126 matching lines @@
     // We need to continue running message_loop_ to complete all destructions.
     SyncWithAudioThread();
 
     audio_manager_.reset();
 
     io_thread_.reset();
     ui_thread_.reset();
   }
 
   void Create() {
-    EXPECT_CALL(*observer_,
-                OnSetAudioStreamStatus(_, kStreamId, "created"));
+    EXPECT_CALL(*observer_, OnSetAudioStreamStatus(
+         _, kRenderViewId, kStreamId, "created"));
 
     InSequence s;
     // We will first receive an OnStreamCreated() signal.
     EXPECT_CALL(*host_, OnStreamCreated(kStreamId, _))
         .WillOnce(QuitMessageLoop(message_loop_.get()));
 
     media::AudioParameters::Format format;
     if (mock_stream_)
       format = media::AudioParameters::AUDIO_MOCK;
     else
       format = media::AudioParameters::AUDIO_PCM_LINEAR;
 
     media::AudioParameters params(
         format, CHANNEL_LAYOUT_STEREO,
         media::AudioParameters::kAudioCDSampleRate, 16,
         media::AudioParameters::kAudioCDSampleRate / 10);
 
     // Send a create stream message to the audio output stream and wait until
     // we receive the created message.
     host_->OnCreateStream(kRenderViewId, kStreamId, params);
     message_loop_->Run();
   }
 
   void Close() {
-    EXPECT_CALL(*observer_,
-                OnSetAudioStreamStatus(_, kStreamId, "closed"));
+    EXPECT_CALL(*observer_, OnSetAudioStreamStatus(
+        _, kRenderViewId, kStreamId, "closed"));
 
     // Send a message to AudioRendererHost to tell it we want to close the
     // stream.
     host_->OnCloseStream(kStreamId);
     message_loop_->RunAllPending();
   }
 
   void Play() {
     EXPECT_CALL(*observer_,
-                OnSetAudioStreamPlaying(_, kStreamId, true));
+                OnSetAudioStreamPlaying(_, kRenderViewId, kStreamId, true));
     EXPECT_CALL(*host_, OnStreamPlaying(kStreamId))
         .WillOnce(QuitMessageLoop(message_loop_.get()));
 
     host_->OnPlayStream(kStreamId);
     message_loop_->Run();
   }
 
   void Pause() {
-    EXPECT_CALL(*observer_,
-                OnSetAudioStreamPlaying(_, kStreamId, false));
+    EXPECT_CALL(*observer_, OnSetAudioStreamPlaying(
+        _, kRenderViewId, kStreamId, false));
     EXPECT_CALL(*host_, OnStreamPaused(kStreamId))
         .WillOnce(QuitMessageLoop(message_loop_.get()));
 
     host_->OnPauseStream(kStreamId);
     message_loop_->Run();
   }
 
   void SetVolume(double volume) {
-    EXPECT_CALL(*observer_,
-                OnSetAudioStreamVolume(_, kStreamId, volume));
+    EXPECT_CALL(*observer_, OnSetAudioStreamVolume(
+        _, kRenderViewId, kStreamId, volume));
 
     host_->OnSetVolume(kStreamId, volume);
     message_loop_->RunAllPending();
   }
 
   void SimulateError() {
-    EXPECT_CALL(*observer_,
-                OnSetAudioStreamStatus(_, kStreamId, "error"));
+    EXPECT_CALL(*observer_, OnSetAudioStreamStatus(
+        _, kRenderViewId, kStreamId, "error"));
     // Find the first AudioOutputController in the AudioRendererHost.
     CHECK(host_->audio_entries_.size())
         << "Calls Create() before calling this method";
     media::AudioOutputController* controller =
         host_->audio_entries_.begin()->second->controller;
     CHECK(controller) << "AudioOutputController not found";
 
     // Expect an error signal sent through IPC.
     EXPECT_CALL(*host_, OnStreamError(kStreamId));
 
     // Expect the audio stream will be deleted.
-    EXPECT_CALL(*observer_, OnDeleteAudioStream(_, kStreamId));
+    EXPECT_CALL(*observer_, OnDeleteAudioStream(
+        _, kRenderViewId, kStreamId));
 
     // Simulate an error sent from the audio device.
     host_->OnError(controller, 0);
     SyncWithAudioThread();
 
     // Expect the audio stream record is removed.
     EXPECT_EQ(0u, host_->audio_entries_.size());
   }
 
   // Called on the audio thread.
@@ skipping 120 matching lines @@
     EnableRealDevice();
 
   Create();
   Play();
   SimulateError();
   Close();
 }
 
 
 // TODO(hclam): Add tests for data conversation in low latency mode.