Move chrome://media-internals to content. This allows us to hide implementation details from the pu…

content/browser/renderer_host/media/audio_renderer_host.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 "content/browser/renderer_host/media/audio_renderer_host.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/browser/browser_main_loop.h"
+#include "content/browser/media/media_internals.h"
 #include "content/browser/renderer_host/media/audio_mirroring_manager.h"
 #include "content/browser/renderer_host/media/audio_sync_reader.h"
 #include "content/common/media/audio_messages.h"
-#include "content/public/browser/media_observer.h"
 #include "media/audio/shared_memory_util.h"
 #include "media/base/audio_bus.h"
 #include "media/base/limits.h"
 
 using media::AudioBus;
 
 namespace content {
 
 struct AudioRendererHost::AudioEntry {
   AudioEntry();
@@ skipping 26 matching lines @@
 }
 
 AudioRendererHost::AudioEntry::~AudioEntry() {}
 
 ///////////////////////////////////////////////////////////////////////////////
 // AudioRendererHost implementations.
 AudioRendererHost::AudioRendererHost(
     int render_process_id,
     media::AudioManager* audio_manager,
     AudioMirroringManager* mirroring_manager,
-    MediaObserver* media_observer)
+    MediaInternals* media_internals)
     : render_process_id_(render_process_id),
       audio_manager_(audio_manager),
       mirroring_manager_(mirroring_manager),
-      media_observer_(media_observer) {
+      media_internals_(media_internals) {
   DCHECK(audio_manager_);
 }
 
 AudioRendererHost::~AudioRendererHost() {
   DCHECK(audio_entries_.empty());
 }
 
 void AudioRendererHost::OnChannelClosing() {
   BrowserMessageFilter::OnChannelClosing();
 
@@ skipping 202 matching lines @@
 
   if (!entry->controller) {
     SendErrorMessage(stream_id);
     return;
   }
 
   // If we have created the controller successfully, create an entry and add it
   // to the map.
   entry->stream_id = stream_id;
   audio_entries_.insert(std::make_pair(stream_id, entry.release()));
-  if (media_observer_)
-    media_observer_->OnSetAudioStreamStatus(this, stream_id, "created");
+  if (media_internals_)
+    media_internals_->OnSetAudioStreamStatus(this, stream_id, "created");
 }
 
 void AudioRendererHost::OnAssociateStreamWithProducer(int stream_id,
                                                       int render_view_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   DVLOG(1) << "AudioRendererHost@" << this
            << "::OnAssociateStreamWithProducer(stream_id=" << stream_id
            << ", render_view_id=" << render_view_id << ")";
 
@@ skipping 20 matching lines @@
 void AudioRendererHost::OnPlayStream(int stream_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupById(stream_id);
   if (!entry) {
     SendErrorMessage(stream_id);
     return;
   }
 
   entry->controller->Play();
-  if (media_observer_)
-    media_observer_->OnSetAudioStreamPlaying(this, stream_id, true);
+  if (media_internals_)
+    media_internals_->OnSetAudioStreamPlaying(this, stream_id, true);
 }
 
 void AudioRendererHost::OnPauseStream(int stream_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupById(stream_id);
   if (!entry) {
     SendErrorMessage(stream_id);
     return;
   }
 
   entry->controller->Pause();
-  if (media_observer_)
-    media_observer_->OnSetAudioStreamPlaying(this, stream_id, false);
+  if (media_internals_)
+    media_internals_->OnSetAudioStreamPlaying(this, stream_id, false);
 }
 
 void AudioRendererHost::OnFlushStream(int stream_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupById(stream_id);
   if (!entry) {
     SendErrorMessage(stream_id);
     return;
   }
 
   entry->controller->Flush();
-  if (media_observer_)
-    media_observer_->OnSetAudioStreamStatus(this, stream_id, "flushed");
+  if (media_internals_)
+    media_internals_->OnSetAudioStreamStatus(this, stream_id, "flushed");
 }
 
 void AudioRendererHost::OnCloseStream(int stream_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
-  if (media_observer_)
-    media_observer_->OnSetAudioStreamStatus(this, stream_id, "closed");
+  if (media_internals_)
+    media_internals_->OnSetAudioStreamStatus(this, stream_id, "closed");
 
   AudioEntry* entry = LookupById(stream_id);
 
   if (entry)
     CloseAndDeleteStream(entry);
 }
 
 void AudioRendererHost::OnSetVolume(int stream_id, double volume) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupById(stream_id);
   if (!entry) {
     SendErrorMessage(stream_id);
     return;
   }
 
   // Make sure the volume is valid.
   if (volume < 0 || volume > 1.0)
     return;
   entry->controller->SetVolume(volume);
-  if (media_observer_)
-    media_observer_->OnSetAudioStreamVolume(this, stream_id, volume);
+  if (media_internals_)
+    media_internals_->OnSetAudioStreamVolume(this, stream_id, volume);
 }
 
 void AudioRendererHost::SendErrorMessage(int32 stream_id) {
   Send(new AudioMsg_NotifyStreamStateChanged(
       stream_id, media::AudioOutputIPCDelegate::kError));
 }
 
 void AudioRendererHost::DeleteEntries() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
@@ skipping 20 matching lines @@
 void AudioRendererHost::DeleteEntry(AudioEntry* entry) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   // Delete the entry when this method goes out of scope.
   scoped_ptr<AudioEntry> entry_deleter(entry);
 
   // Erase the entry identified by |stream_id| from the map.
   audio_entries_.erase(entry->stream_id);
 
   // Notify the media observer.
-  if (media_observer_)
-    media_observer_->OnDeleteAudioStream(this, entry->stream_id);
+  if (media_internals_)
+    media_internals_->OnDeleteAudioStream(this, entry->stream_id);
 }
 
 void AudioRendererHost::DeleteEntryOnError(AudioEntry* entry) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   // Sends the error message first before we close the stream because
   // |entry| is destroyed in DeleteEntry().
   SendErrorMessage(entry->stream_id);
 
-  if (media_observer_)
-    media_observer_->OnSetAudioStreamStatus(this, entry->stream_id, "error");
+  if (media_internals_)
+    media_internals_->OnSetAudioStreamStatus(this, entry->stream_id, "error");
   CloseAndDeleteStream(entry);
 }
 
 AudioRendererHost::AudioEntry* AudioRendererHost::LookupById(int stream_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntryMap::iterator i = audio_entries_.find(stream_id);
   if (i != audio_entries_.end() && !i->second->pending_close)
     return i->second;
   return NULL;
@@ skipping 13 matching lines @@
   return NULL;
 }
 
 media::AudioOutputController* AudioRendererHost::LookupControllerByIdForTesting(
     int stream_id) {
   AudioEntry* const entry = LookupById(stream_id);
   return entry ? entry->controller : NULL;
 }
 
 }  // namespace content