Pass camera facing info to audio client

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.cc
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
index dff8332fdd420c5cf34b5d3e200e4faa1a295cbf..b8c3ebc6aa83e3cb4191b1eeabe2ceb37fbf7c38 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.cc
@@ -141,6 +141,7 @@
 #include "components/version_info/version_info.h"
 #include "components/wallpaper/wallpaper_manager_base.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/media_capture_devices.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
@@ -418,6 +419,9 @@ void ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun() {
   CrasAudioHandler::Initialize(
       new AudioDevicesPrefHandlerImpl(g_browser_process->local_state()));
 
+  content::MediaCaptureDevices::GetInstance()->AddVideoCaptureObserver(
+      CrasAudioHandler::Get());
+
   quirks::QuirksManager::Initialize(
       std::unique_ptr<quirks::QuirksManager::Delegate>(
           new quirks::QuirksManagerDelegateImpl()),
@@ -919,6 +923,8 @@ void ChromeBrowserMainPartsChromeos::PostMainMessageLoopRun() {
   // Stops all in-flight OAuth2 token fetchers before the IO thread stops.
   DeviceOAuth2TokenServiceFactory::Shutdown();
 
+  content::MediaCaptureDevices::GetInstance()->RemoveAllVideoCaptureObservers();
+
   // Shutdown after PostMainMessageLoopRun() which should destroy all observers.
   CrasAudioHandler::Shutdown();