Lands http://codereview.chromium.org/2928005/ for Dill:

chrome/browser/chromeos/status/power_menu_button.h

Index: chrome/browser/chromeos/status/power_menu_button.h
diff --git a/chrome/browser/chromeos/status/power_menu_button.h b/chrome/browser/chromeos/status/power_menu_button.h
index a839e634c833778398637d50e23688811988a0d5..709d2bc40a4d10aebe0cf664c3d9323ac84165c6 100644
--- a/chrome/browser/chromeos/status/power_menu_button.h
+++ b/chrome/browser/chromeos/status/power_menu_button.h
@@ -41,7 +41,7 @@ class PowerMenuButton : public StatusAreaButton,
       ui::Accelerator* accelerator) const { return false; }
   virtual bool IsItemCheckedAt(int index) const { return false; }
   virtual int GetGroupIdAt(int index) const { return 0; }
-  virtual bool GetIconAt(int index, SkBitmap* icon) const { return false; }
+  virtual bool GetIconAt(int index, SkBitmap* icon) { return false; }
   virtual ui::ButtonMenuItemModel* GetButtonMenuItemAt(int index) const {
     return NULL;
   }
@@ -50,6 +50,7 @@ class PowerMenuButton : public StatusAreaButton,
   virtual void HighlightChangedTo(int index) {}
   virtual void ActivatedAt(int index) {}
   virtual void MenuWillShow() {}
+  virtual void SetMenuModelDelegate(ui::MenuModelDelegate* delegate) {}
 
   // PowerLibrary::Observer implementation.
   virtual void PowerChanged(PowerLibrary* obj);