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

content/browser/web_contents/web_contents_view_aura.cc

Index: content/browser/web_contents/web_contents_view_aura.cc
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc
index a2a0fe1c880ddaab891054aebddce6c42bf10764..ba5ced332929fd2137f99e1d17c715eb0c93efa4 100644
--- a/content/browser/web_contents/web_contents_view_aura.cc
+++ b/content/browser/web_contents/web_contents_view_aura.cc
@@ -952,7 +952,7 @@ void WebContentsViewAura::StartDragging(
   }
 
   // Grab a weak pointer to the RenderWidgetHost, since it can be destroyed
-  // during the drag and drop nested message loop in StartDragAndDrop.
+  // during the drag and drop nested run loop in StartDragAndDrop.
   // For example, the RenderWidgetHost can be deleted if a cross-process
   // transfer happens while dragging, since the RenderWidgetHost is deleted in
   // that case.