Adds some debugging in code in hopes of figuring out a crash in the

views/controls/menu/menu_controller.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_
 #define VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 59 matching lines @@
                     const gfx::Rect& bounds,
                     MenuItemView::AnchorPosition position,
                     int* mouse_event_flags);
 
   // Whether or not Run blocks.
   bool IsBlockingRun() const { return blocking_run_; }
 
   // Whether or not drag operation is in progress.
   bool drag_in_progress() const { return drag_in_progress_; }
 
-  // Sets the selection to menu_item, a value of NULL unselects everything.
-  // If open_submenu is true and menu_item has a submenu, the submenu is shown.
-  // If update_immediately is true, submenus are opened immediately, otherwise
-  // submenus are only opened after a timer fires.
-  //
-  // Internally this updates pending_state_ immediatley, and if
-  // update_immediately is true, CommitPendingSelection is invoked to
-  // show/hide submenus and update state_.
-  void SetSelection(MenuItemView* menu_item,
-                    bool open_submenu,
-                    bool update_immediately);
-
   // Cancels the current Run. See ExitType for a description of what happens
   // with the various parameters.
   void Cancel(ExitType type);
 
   // An alternative to Cancel(EXIT_ALL) that can be used with a OneShotTimer.
   void CancelAll() { Cancel(EXIT_ALL); }
 
   // Various events, forwarded from the submenu.
   //
   // NOTE: the coordinates of the events are in that of the
@@ skipping 16 matching lines @@
 
   // Invoked from the scroll buttons of the MenuScrollViewContainer.
   void OnDragEnteredScrollButton(SubmenuView* source, bool is_up);
   void OnDragExitedScrollButton(SubmenuView* source);
 
  private:
   class MenuScrollTask;
 
   struct SelectByCharDetails;
 
+  // Values supplied to SetSelection.
+  enum SetSelectionTypes {
+    SELECTION_DEFAULT               = 0,
+
+    // If set submenus are opened immediately, otherwise submenus are only
+    // openned after a timer fires.
+    SELECTION_UPDATE_IMMEDIATELY    = 1 << 0,
+
+    // If set and the menu_item has a submenu, the submenu is shown.
+    SELECTION_OPEN_SUBMENU          = 1 << 1,
+
+    // SetSelection is being invoked as the result exiting or cancelling the
+    // menu. This is used for debugging.
+    SELECTION_EXIT                  = 1 << 2,
+  };
+
   // Tracks selection information.
   struct State {
     State() : item(NULL), submenu_open(false) {}
 
     // The selected menu item.
     MenuItemView* item;
 
     // If item has a submenu this indicates if the submenu is showing.
     bool submenu_open;
 
@@ skipping 38 matching lines @@
     MenuItemView* menu;
 
     // If type is MENU_ITEM but the mouse is not over a menu item this is the
     // parent of the menu item the user clicked on. Otherwise this is NULL.
     MenuItemView* parent;
 
     // If type is SCROLL_*, this is the submenu the mouse is over.
     SubmenuView* submenu;
   };
 
+  // Sets the selection to menu_item a value of NULL unselects
+  // everything. |types| is a bitmask of |SetSelectionTypes|.
+  //
+  // Internally this updates pending_state_ immediatley. state_ is only updated
+  // immediately if SELECTION_UPDATE_IMMEDIATELY is set. If
+  // SELECTION_UPDATE_IMMEDIATELY is not set CommitPendingSelection is invoked
+  // to show/hide submenus and update state_.
+  void SetSelection(MenuItemView* menu_item, int types);
+
   // Sets the active MenuController.
   static void SetActiveInstance(MenuController* controller);
 
 #if defined(OS_WIN)
   // Dispatcher method. This returns true if the menu was canceled, or
   // if the message is such that the menu should be closed.
   virtual bool Dispatch(const MSG& msg);
 
 #else
   virtual bool Dispatch(GdkEvent* event);
@@ skipping 270 matching lines @@
   // If non-null mouse drag events are forwarded to this view. See
   // UpdateActiveMouseView for details.
   View* active_mouse_view_;
 
   DISALLOW_COPY_AND_ASSIGN(MenuController);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_