Split out audio debug recording from RenderProcessHostImpl.

content/browser/media/audio_debug_recording_impl.h

Index: content/browser/media/audio_debug_recording_impl.h
diff --git a/content/browser/media/audio_debug_recording_impl.h b/content/browser/media/audio_debug_recording_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..68aede78f668462fd3771352b0393b00fdfe9ada
--- /dev/null
+++ b/content/browser/media/audio_debug_recording_impl.h
@@ -0,0 +1,70 @@
+// 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.
+
+#ifndef CONTENT_BROWSER_MEDIA_AUDIO_DEBUG_RECORDING_IMPL_H_
+#define CONTENT_BROWSER_MEDIA_AUDIO_DEBUG_RECORDING_IMPL_H_
+
+#include <set>
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "base/threading/thread_checker.h"
+#include "content/common/media/audio_debug_recording.mojom.h"
+#include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
+
+namespace base {
+class FilePath;
+}
+
+namespace content {
+
+class AudioInputRendererHost;
+
+class AudioDebugRecordingImpl : public AudioDebugRecording {

[Henrik Grunell, 2015/10/15 12:17:03]

Comment with class description and threading story. Will there be one object per
render process host?

[Anand Mistry (off Chromium), 2015/10/21 03:58:24]

Done.

+ public:
+  using DisconnectCallback = base::Callback<void(AudioDebugRecordingImpl*)>;
+
+  AudioDebugRecordingImpl(
+      int render_host_id,
+      const scoped_refptr<AudioInputRendererHost>& audio_input_renderer_host,
+      const DisconnectCallback& disconnect_cb,
+      mojo::InterfaceRequest<AudioDebugRecording> request);
+  ~AudioDebugRecordingImpl() override;
+
+  // Enables/disables AEC dumping.

[Henrik Grunell, 2015/10/15 12:17:03]

AEC dumping -> audio debug recordings.

[Anand Mistry (off Chromium), 2015/10/21 03:58:23]

Done.

+  void EnableAudioDebugRecording(const base::FilePath& file);
+  void DisableAudioDebugRecording();
+
+ private:
+  class DumpObserver;
+
+  // |AudioDebugRecording| implementaion.
+  void RegisterObserver(int32_t id,
+                        AudioDebugRecordingObserverPtr observer) override;
+
+  // Mojo connection error callback.
+  void OnConnectionError();
+
+  void RemoveObserver(DumpObserver* observer);
+
+  // Render process host ID.
+  const int render_host_id_;
+
+  const scoped_refptr<AudioInputRendererHost> audio_input_renderer_host_;
+
+  // Callback for Mojo disconnections.
+  const DisconnectCallback disconnect_cb_;
+
+  // Set of connected dump observers.
+  std::set<DumpObserver*> observers_;
+
+  base::ThreadChecker thread_checker_;
+  mojo::Binding<AudioDebugRecording> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(AudioDebugRecordingImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_MEDIA_AUDIO_DEBUG_RECORDING_IMPL_H_