Start deinlining non-empty virtual methods. (This will be automatically checked

app/menus/menu_model.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 APP_MENUS_MENU_MODEL_H_
 #define APP_MENUS_MENU_MODEL_H_
 #pragma once
 
 #include "base/scoped_ptr.h"
 #include "base/string16.h"
@@ skipping 31 matching lines @@
   // platforms support icons in menus natively and so this is a hint for
   // triggering a custom rendering mode.
   virtual bool HasIcons() const = 0;
 
   // Returns the index of the first item. This is 0 for most menus except the
   // system menu on Windows. |native_menu| is the menu to locate the start index
   // within. It is guaranteed to be reset to a clean default state.
   // IMPORTANT: If the model implementation returns something _other_ than 0
   //            here, it must offset the values for |index| it passes to the
   //            methods below by this number - this is NOT done automatically!
-  virtual int GetFirstItemIndex(gfx::NativeMenu native_menu) const { return 0; }
+  virtual int GetFirstItemIndex(gfx::NativeMenu native_menu) const;
 
   // Returns the number of items in the menu.
   virtual int GetItemCount() const = 0;
 
   // Returns the type of item at the specified index.
   virtual ItemType GetTypeAt(int index) const = 0;
 
   // Returns the command id of the item at the specified index.
   virtual int GetCommandIdAt(int index) const = 0;
 
   // Returns the label of the item at the specified index.
   virtual string16 GetLabelAt(int index) const = 0;
 
   // Returns true if the label at the specified index can change over the course
   // of the menu's lifetime. If this function returns true, the label of the
   // menu item will be updated each time the menu is shown.
   virtual bool IsLabelDynamicAt(int index) const = 0;
 
   // Returns the font use for the label at the specified index.
   // If NULL, then use default font.
-  virtual const gfx::Font* GetLabelFontAt(int index) const { return NULL; }
+  virtual const gfx::Font* GetLabelFontAt(int index) const;
 
   // Gets the acclerator information for the specified index, returning true if
   // there is a shortcut accelerator for the item, false otherwise.
   virtual bool GetAcceleratorAt(int index,
                                 menus::Accelerator* accelerator) const = 0;
 
   // Returns the checked state of the item at the specified index.
   virtual bool IsItemCheckedAt(int index) const = 0;
 
   // Returns the id of the group of radio items that the item at the specified
@@ skipping 33 matching lines @@
   // Retrieves the model and index that contains a specific command id. Returns
   // true if an item with the specified command id is found. |model| is inout,
   // and specifies the model to start searching from.
   static bool GetModelAndIndexForCommandId(int command_id, MenuModel** model,
                                            int* index);
 };
 
 }  // namespace
 
 #endif  // APP_MENUS_MENU_MODEL_H_