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

ui/views/widget/desktop_aura/x11_move_loop.h

Index: ui/views/widget/desktop_aura/x11_move_loop.h
diff --git a/ui/views/widget/desktop_aura/x11_move_loop.h b/ui/views/widget/desktop_aura/x11_move_loop.h
index 102c8663efe1ec146b019b06069bd2e5d773022f..b12cbecde9c63418f4acc873276992da83129804 100644
--- a/ui/views/widget/desktop_aura/x11_move_loop.h
+++ b/ui/views/widget/desktop_aura/x11_move_loop.h
@@ -10,13 +10,13 @@
 
 namespace views {
 
-// Runs a nested message loop and grabs the mouse. This is used to implement
+// Runs a nested run loop and grabs the mouse. This is used to implement
 // dragging.
 class X11MoveLoop {
  public:
   virtual ~X11MoveLoop() {}
 
-  // Runs the nested message loop. While the mouse is grabbed, use |cursor| as
+  // Runs the nested run loop. While the mouse is grabbed, use |cursor| as
   // the mouse cursor. Returns true if the move-loop is completed successfully.
   // If the pointer-grab fails, or the move-loop is canceled by the user (e.g.
   // by pressing escape), then returns false.