Fix accelerator handling for in-menu buttons in the app menu.

ui/views/controls/button/custom_button.h

Index: ui/views/controls/button/custom_button.h
diff --git a/ui/views/controls/button/custom_button.h b/ui/views/controls/button/custom_button.h
index 2f3508f453fb2536847deacccf41e29e8d288dba..5f6ffbd43ad61d3c39d3d7ea6211e28cf63a3a54 100644
--- a/ui/views/controls/button/custom_button.h
+++ b/ui/views/controls/button/custom_button.h
@@ -120,6 +120,11 @@ class VIEWS_EXPORT CustomButton : public Button,
   // we simply return IsTriggerableEvent(event).
   virtual bool ShouldEnterPushedState(const ui::Event& event);
 
+  // If true, handles accelerator events when the widget associated with this
+  // button is inactive. In-menu buttons in the hamburger menu such as zoom and

[msw, 2015/12/23 04:06:25]

"Menu widgets are inactive, but buttons therein (eg. the app menu's zoom and
cut/copy/paste) should still handle accelerators. "

[meacer, 2015/12/24 21:40:02]

Done.

+  // cut/copy/paste are inactive, but they should still handle accelerators.
+  virtual bool ShouldHandleAcceleratorWhenInactive();
+
   // Returns true if the button should enter hovered state; that is, if the
   // mouse is over the button, and no other window has capture (which would
   // prevent the button from receiving MouseExited events and updating its