Remove device enumeration, caching and monitoring from MediaStreamManager.

content/browser/renderer_host/media/media_stream_manager_unittest.cc

Index: content/browser/renderer_host/media/media_stream_manager_unittest.cc
diff --git a/content/browser/renderer_host/media/media_stream_manager_unittest.cc b/content/browser/renderer_host/media/media_stream_manager_unittest.cc
index 8741484a9f6b78e0e010b5ea753d88952dfbd8b2..c2f0c11d64de1757fe54e4830c1702c489b3a402 100644
--- a/content/browser/renderer_host/media/media_stream_manager_unittest.cc
+++ b/content/browser/renderer_host/media/media_stream_manager_unittest.cc
@@ -389,7 +389,8 @@ TEST_F(MediaStreamManagerTest, NotifyDeviceChanges) {
     // Simulate device change
     EXPECT_CALL(requester, MockDevicesChanged(_));
     audio_manager_->SetNumAudioInputDevices(3);
-    media_stream_manager_->OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO);
+    media_stream_manager_->media_devices_manager()->OnDevicesChanged(
+        base::SystemMonitor::DEVTYPE_AUDIO);
     run_loop_device_change.Run();
   }
 
@@ -404,7 +405,8 @@ TEST_F(MediaStreamManagerTest, NotifyDeviceChanges) {
     // Bogus OnDeviceChange, as devices have not changed. Should not trigger
     // notification.
     EXPECT_CALL(requester, MockDevicesChanged(_)).Times(0);
-    media_stream_manager_->OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO);
+    media_stream_manager_->media_devices_manager()->OnDevicesChanged(
+        base::SystemMonitor::DEVTYPE_AUDIO);
 
     // Do enumeration to be able to quit the RunLoop.
     EXPECT_CALL(requester,