The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dfa60e517f22a75c8957fbe91f0fc674a0815d00

commit dfa60e517f22a75c8957fbe91f0fc674a0815d00
Author: Jonas Olsson <jonasolsson@chromium.org>
Date: Fri Apr 27 08:35:11 2018

Refactor session id handling in AudioinputDevice.

|session_id| used to be passed to AudioCapturerSource::Initialize, then on to AudioInputIPC::CreateStream, and finally into the stream creation callback.
Change that to pass it into AudioInputIPCFactory::CreateAudioInputIPC at AudioInputDevice creation time, and bind it into the callback at that point. We don't pass it to factory_->CreateAudioCapturerSource branch, as that one is only used for testing.

This means that the caller has to provide the session id at IPC creation time, instead of the call to Initialize.
Note that we currently don't currently support calling Initialize more than once, so we don't need to support changing the session_id later.

BUG= 834704 
TBR=bbudge@chromium.org

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: Ibfaaa80e1552e7166fc18b6c935ac1c03a2cef00
Reviewed-on: https://chromium-review.googlesource.com/1024170
Commit-Queue: Olga Sharonova <olka@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Yuri Wiitala <miu@chromium.org>
Reviewed-by: Olga Sharonova <olka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#554339}
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/chrome/renderer/media/cast_receiver_session.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/audio_device_factory.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/audio_device_factory.h
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/audio_input_ipc_factory.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/audio_input_ipc_factory.h
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/mock_audio_device_factory.h
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/mojo_audio_input_ipc.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/mojo_audio_input_ipc.h
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/mojo_audio_input_ipc_unittest.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/stream/external_media_stream_audio_source.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/stream/local_media_stream_audio_source.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/stream/processed_local_audio_source.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/stream/processed_local_audio_source_unittest.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/webrtc/rtc_peer_connection_handler_unittest.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/media/webrtc/webrtc_media_stream_adapter_unittest.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/pepper/pepper_platform_audio_input.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/renderer/pepper/pepper_platform_audio_input.h
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/content/shell/renderer/layout_test/blink_test_runner.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/media/audio/audio_input_device.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/media/audio/audio_input_device.h
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/media/audio/audio_input_device_unittest.cc
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/media/audio/audio_input_ipc.h
[modify] https://crrev.com/dfa60e517f22a75c8957fbe91f0fc674a0815d00/media/base/audio_capturer_source.h