Fix Chrome OS virtual keyboard accessibility

ui/views/accessibility/ax_aura_obj_cache.cc

 // Copyright 2014 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 "ui/views/accessibility/ax_aura_obj_cache.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "base/strings/string_util.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 106 matching lines @@
     return GetOrCreate(focused_view);
   return nullptr;
 }
 
 void AXAuraObjCache::OnFocusedViewChanged() {
   View* view = GetFocusedView();
   if (view)
     view->NotifyAccessibilityEvent(ui::AX_EVENT_FOCUS, true);
 }
 
+void AXAuraObjCache::FireEvent(AXAuraObjWrapper* aura_obj,
+                               ui::AXEvent event_type) {
+  if (delegate_)
+    delegate_->OnEvent(aura_obj, event_type);
+}
+
 AXAuraObjCache::AXAuraObjCache()
     : current_id_(1),
       focus_client_(nullptr),
       is_destroying_(false),
       delegate_(nullptr) {}
 
 AXAuraObjCache::~AXAuraObjCache() {
   is_destroying_ = true;
   cache_.clear();
 }
@@ skipping 82 matching lines @@
     AuraView* aura_view,
     std::map<AuraView*, int32_t>& aura_view_to_id_map) {
   int32_t id = GetID(aura_view);
   if (id == -1)
     return;
   aura_view_to_id_map.erase(aura_view);
   Remove(id);
 }
 
 }  // namespace views