[Linux Views] Refactor accelerator handler related code.

views/widget/widget_gtk.h

Index: views/widget/widget_gtk.h
diff --git a/views/widget/widget_gtk.h b/views/widget/widget_gtk.h
index d010b037e3adf3c84a51ff23b3cc4f6954011d7f..7e1bdd14c84968f42d3ff420ffae2477b8c49985 100644
--- a/views/widget/widget_gtk.h
+++ b/views/widget/widget_gtk.h
@@ -198,6 +198,10 @@ class WidgetGtk
   // Clears the focus on the native widget having the focus.
   virtual void ClearNativeFocus();
 
+  // Handles a keyboard event by sending it to our focus manager.
+  // Returns true if it's handled by the focus manager.
+  bool HandleKeyboardEvent(GdkEventKey* event);
+
  protected:
   // If widget containes another widget, translates event coordinates to the
   // contained widget's coordinates, else returns original event coordinates.
@@ -247,8 +251,7 @@ class WidgetGtk
   CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnButtonRelease, GdkEventButton*);
   CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnFocusIn, GdkEventFocus*);
   CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnFocusOut, GdkEventFocus*);
-  CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnKeyPress, GdkEventKey*);
-  CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnKeyRelease, GdkEventKey*);
+  CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnKeyEvent, GdkEventKey*);
   CHROMEGTK_CALLBACK_4(WidgetGtk, gboolean, OnQueryTooltip,
                        gint, gint, gboolean, GtkTooltip*);
   CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnScroll, GdkEventScroll*);
@@ -436,6 +439,9 @@ class WidgetGtk
   // This is false by default.
   bool is_double_buffered_;
 
+  // Indicates if we should handle the upcoming Alt key release event.
+  bool should_handle_menu_key_release_;
+
   DISALLOW_COPY_AND_ASSIGN(WidgetGtk);
 };