Custom buttons should only handle accelerators when focused.

ui/views/controls/button/custom_button.cc

Index: ui/views/controls/button/custom_button.cc
diff --git a/ui/views/controls/button/custom_button.cc b/ui/views/controls/button/custom_button.cc
index 61b595bbfeb2f059327527ad3c1ef18e76afb270..eaef00dcc992db1b28aba825adb38cd24e2a54c8 100644
--- a/ui/views/controls/button/custom_button.cc
+++ b/ui/views/controls/button/custom_button.cc
@@ -251,6 +251,8 @@ void CustomButton::OnGestureEvent(ui::GestureEvent* event) {
 }
 
 bool CustomButton::AcceleratorPressed(const ui::Accelerator& accelerator) {
+  if (!HasFocus())

[msw, 2015/11/10 22:48:34]

This isn't quite right... you want to check if !GetWidget()->IsActive()
The accelerator key should work even if another control is focused.
(ie. Edit Bookmark; focus the 'Name' textfield; hit [Enter] to "Save")
Maybe also bail or continue if GetWidget() is null for tests, etc.

[meacer, 2015/11/11 00:32:59]

Done.

+    return false;
   SetState(STATE_NORMAL);
   // TODO(beng): remove once NotifyClick takes ui::Event.
   ui::MouseEvent synthetic_event(