Turn pageAction.show -> browserAction.sensibleThing.

chrome/browser/ui/gtk/browser_actions_toolbar_gtk.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/gtk/browser_actions_toolbar_gtk.h"
 
 #include <gtk/gtk.h>
 
 #include <algorithm>
 #include <vector>
@@ skipping 219 matching lines @@
     SkBitmap image = extension_->browser_action()->GetIcon(tab_id);
     if (!image.isNull()) {
       GdkPixbuf* previous_gdk_icon = tab_specific_icon_;
       tab_specific_icon_ = gfx::GdkPixbufFromSkBitmap(image);
       SetImage(tab_specific_icon_);
       if (previous_gdk_icon)
         g_object_unref(previous_gdk_icon);
     } else if (default_icon_) {
       SetImage(default_icon_);
     }
+    UpdateEnabledness(tab_id);
+
     gtk_widget_queue_draw(button());
   }
 
   SkBitmap GetIcon() {
     const SkBitmap& image = extension_->browser_action()->GetIcon(
         toolbar_->GetCurrentTabId());
     if (!image.isNull()) {
       return image;
     } else {
       return default_skbitmap_;
@@ skipping 22 matching lines @@
     switch (model->ExecuteBrowserAction(extension, browser, &popup_url)) {
       case ExtensionToolbarModel::ACTION_NONE:
         break;
       case ExtensionToolbarModel::ACTION_SHOW_POPUP:
         ExtensionPopupGtk::Show(popup_url, browser, widget,
                                 ExtensionPopupGtk::SHOW);
         break;
     }
   }
 
+  void UpdateEnabledness(int tab_id) {
+    bool visible = extension_->browser_action()->GetIsVisible(tab_id);
+    gtk_widget_set_sensitive(button(), visible ? TRUE : FALSE);
+  }
+
   // MenuGtk::Delegate implementation.
   virtual void StoppedShowing() {
     button_->UnsetPaintOverride();
 
     // If the context menu was showing for the overflow menu, re-assert the
     // grab that was shadowed.
     if (toolbar_->overflow_menu_.get())
       gtk_util::GrabAllInput(toolbar_->overflow_menu_->widget());
   }
 
@@ skipping 791 matching lines @@
 
   menu->PopupAsContext(gfx::Point(event->x_root, event->y_root),
                        event->time);
   return TRUE;
 }
 
 void BrowserActionsToolbarGtk::OnButtonShowOrHide(GtkWidget* sender) {
   if (!resize_animation_.is_animating())
     UpdateChevronVisibility();
 }