AURA/X11: Handle VKEY_MENU accelerator on content area

chrome/browser/ui/views/unhandled_keyboard_event_handler.h

Index: chrome/browser/ui/views/unhandled_keyboard_event_handler.h
diff --git a/chrome/browser/ui/views/unhandled_keyboard_event_handler.h b/chrome/browser/ui/views/unhandled_keyboard_event_handler.h
index 41f1a841bc9ca6fc440cb462cc076c80943449d5..c61ff238f8257b57f9aac316489f43af308f9469 100644
--- a/chrome/browser/ui/views/unhandled_keyboard_event_handler.h
+++ b/chrome/browser/ui/views/unhandled_keyboard_event_handler.h
@@ -24,6 +24,7 @@ class UnhandledKeyboardEventHandler {
                            views::FocusManager* focus_manager);
 
  private:
+#if defined(OS_WIN)
   // Whether to ignore the next Char keyboard event.
   // If a RawKeyDown event was handled as a shortcut key, then we're done
   // handling it and should eat any Char event that the translate phase may
@@ -31,6 +32,7 @@ class UnhandledKeyboardEventHandler {
   // such as a beep if DefWindowProc() has no default handling for the given
   // Char.)
   bool ignore_next_char_event_;
+#endif
 
   DISALLOW_COPY_AND_ASSIGN(UnhandledKeyboardEventHandler);
 };