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Side by Side Diff: content/browser/renderer_host/media/audio_input_device_manager_event_handler.h

Issue 12440027: Do not pass the string device_id via IPC message to create an audio input stream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: addressed palmer's comments Created 7 years, 9 months ago
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1 // Copyright (c) 2012 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 // AudioInputDeviceManagerEventHandler is used to signal events from
6 // AudioInoutDeviceManager when it's time to start and stop devices.
7
8 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_EVENT_HAN DLER_H_
9 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_EVENT_HAN DLER_H_
10
11 #include "content/common/content_export.h"
12
13 namespace content {
14
15 class CONTENT_EXPORT AudioInputDeviceManagerEventHandler {
16 public:
17 // Called by AudioInputDeviceManager to create an audio stream using the
18 // device index when the device has been started.
19 virtual void OnDeviceStarted(int session_id,
20 const std::string& device_id) = 0;
21
22 // Called by AudioInputDeviceManager to stop the audio stream when a device
23 // has been stopped. This method is used only when users call Close() without
24 // calling Stop() on a started device.
25 virtual void OnDeviceStopped(int session_id) = 0;
26
27 protected:
28 virtual ~AudioInputDeviceManagerEventHandler() {}
29 };
30
31 } // namespace content
32
33 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_AUDIO_INPUT_DEVICE_MANAGER_EVENT_ HANDLER_H_
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