Making the focus remembering across tab switch work.

views/controls/native/native_view_host_gtk.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef VIEWS_CONTROLS_NATIVE_HOST_VIEW_GTK_H_
 #define VIEWS_CONTROLS_NATIVE_HOST_VIEW_GTK_H_
 
 #include <gtk/gtk.h>
 #include <string>
 
@@ skipping 36 matching lines @@
   void CreateFixed(bool needs_window);
 
   // Destroys the GtkFixed that performs clipping on our hosted GtkWidget.
   void DestroyFixed();
 
   WidgetGtk* GetHostWidget() const;
 
   // Invoked from the 'destroy' signal.
   static void CallDestroy(GtkObject* object, NativeViewHostGtk* host);
 
+  // Invoked from the 'focus-in-event' signal.
+  static void CallFocusIn(GtkWidget* widget,
+                          GdkEventFocus* event,
+                          NativeViewHostGtk* button);
+
   // Our associated NativeViewHost.
   NativeViewHost* host_;
 
   // Have we installed a region on the gfx::NativeView used to clip to only the
   // visible portion of the gfx::NativeView ?
   bool installed_clip_;
 
   // The installed clip rect. InstallClip doesn't actually perform the clipping,
   // a call to ShowWidget will.
   gfx::Rect installed_clip_bounds_;
 
   // Signal handle id for 'destroy' signal.
   gulong destroy_signal_id_;
 
+  // Signal handle id for 'focus-in-event' signal.
+  gulong focus_signal_id_;
+
   // The GtkFixed that contains the attached gfx::NativeView (used for
   // clipping).
   GtkWidget* fixed_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeViewHostGtk);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_NATIVE_HOST_VIEW_GTK_H_