Make the location bar generate accessibility extension API events...

chrome/browser/views/accessible_view_helper.cc

Index: chrome/browser/views/accessible_view_helper.cc
===================================================================
--- chrome/browser/views/accessible_view_helper.cc	(revision 51112)
+++ chrome/browser/views/accessible_view_helper.cc	(working copy)
@@ -8,6 +8,7 @@
 #include "chrome/browser/accessibility_events.h"
 #include "chrome/browser/profile.h"
 #include "chrome/common/notification_service.h"
+#include "views/widget/widget.h"
 
 using views::View;
 
@@ -18,6 +19,11 @@
       view_tree_(view_tree) {
   if (!accessibility_event_router_->AddViewTree(view_tree_, profile))
     view_tree_ = NULL;
+
+#if defined(OS_LINUX)
+  GtkWidget* widget = view_tree->GetWidget()->GetNativeView();
+  widget_helper_.reset(new AccessibleWidgetHelper(widget, profile));
+#endif
 }
 
 AccessibleViewHelper::~AccessibleViewHelper() {