[Mojo Video Capture] Implement a VideoCaptureProvider using the Mojo service (part 2)

content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc

Index: content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc
diff --git a/content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc b/content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc
index 49d45b1da95f8dc129bf8153302652bc999b2437..f34de98ff20cb09a577c667e02273e03c2356080 100644
--- a/content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc
+++ b/content/browser/renderer_host/media/in_process_video_capture_device_launcher.cc
@@ -84,7 +84,7 @@ void InProcessVideoCaptureDeviceLauncher::LaunchDeviceAsync(
   auto device_client = CreateDeviceClient(max_buffers, std::move(receiver));
 
   base::Closure start_capture_closure;
-  // Use of |this| is safe, because |done_cb| guarantees that |this|
+  // Use of Unretained |this| is safe, because |done_cb| guarantees that |this|
   // stays alive.
   ReceiveDeviceCallback after_start_capture_callback = media::BindToCurrentLoop(
       base::Bind(&InProcessVideoCaptureDeviceLauncher::OnDeviceStarted,