Add initial tests for keyboard access (tabbing in some dialogs)....

views/view_gtk.cc

 // Copyright (c) 2010 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 "views/view.h"
 
 #include <gtk/gtk.h>
 
 #include "base/logging.h"
+#include "views/views_delegate.h"
 
 namespace views {
 
 // static
 int View::GetDoubleClickTimeMS() {
   GdkDisplay* display = gdk_display_get_default();
   return display ? display->double_click_time : 500;
 }
 
 int View::GetMenuShowDelay() {
   return kShowFolderDropMenuDelay;
 }
 
 void View::NotifyAccessibilityEvent(AccessibilityTypes::Event event_type) {
-  // Not implemented on GTK.
+  NotifyAccessibilityEvent(event_type, true);
+}
+
+void View::NotifyAccessibilityEvent(AccessibilityTypes::Event event_type,
+    bool send_native_event) {
+  // Send the notification to the delegate.
+  if (ViewsDelegate::views_delegate)
+    ViewsDelegate::views_delegate->NotifyAccessibilityEvent(this, event_type);
+
+  // In the future if we add native GTK accessibility support, the
+  // notification should be sent here.
 }
 
 ViewAccessibilityWrapper* View::GetViewAccessibilityWrapper() {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 int View::GetHorizontalDragThreshold() {
   static bool determined_threshold = false;
   static int drag_threshold = 8;
   if (determined_threshold)
     return drag_threshold;
   determined_threshold = true;
   GtkSettings* settings = gtk_settings_get_default();
   if (!settings)
     return drag_threshold;
   int value = 0;
   g_object_get(G_OBJECT(settings), "gtk-dnd-drag-threshold", &value, NULL);
   if (value)
     drag_threshold = value;
   return drag_threshold;
 }
 
 int View::GetVerticalDragThreshold() {
   // Vertical and horizontal drag threshold are the same in Gtk.
   return GetHorizontalDragThreshold();
 }
 
 }  // namespace views