Replace "nested message loop" with "nested run loop" in comments.

chrome/browser/media/webrtc/desktop_capture_access_handler.cc

Index: chrome/browser/media/webrtc/desktop_capture_access_handler.cc
diff --git a/chrome/browser/media/webrtc/desktop_capture_access_handler.cc b/chrome/browser/media/webrtc/desktop_capture_access_handler.cc
index fec7993e182c232c41eb3952e9ecde92de9a90b8..9dc698fd532072f426ac62205c7ee69f16d762f0 100644
--- a/chrome/browser/media/webrtc/desktop_capture_access_handler.cc
+++ b/chrome/browser/media/webrtc/desktop_capture_access_handler.cc
@@ -275,7 +275,7 @@ void DesktopCaptureAccessHandler::ProcessScreenCaptureAccessRequest(
   //  2. Request comes from a page with a secure origin or from an extension.
   if (screen_capture_enabled && origin_is_secure) {
     // Get title of the calling application prior to showing the message box.
-    // chrome::ShowQuestionMessageBox() starts a nested message loop which may
+    // chrome::ShowQuestionMessageBox() starts a nested run loop which may
     // allow |web_contents| to be destroyed on the UI thread before the messag
     // box is closed. See http://crbug.com/326690.
     base::string16 application_title =