Launcher Search box, Back and Mic buttons now focusable in ChromeVox.

ui/app_list/search_box_model.h

 // 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.
 
 #ifndef UI_APP_LIST_SEARCH_BOX_MODEL_H_
 #define UI_APP_LIST_SEARCH_BOX_MODEL_H_
 
 #include "base/basictypes.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
@@ skipping 10 matching lines @@
 // is used as query edit control's placeholder text and displayed when there is
 // no user text in the control. The selection model and the text represents the
 // text, cursor position and selected text in edit control.
 class APP_LIST_EXPORT SearchBoxModel {
  public:
   // The properties of the speech button.
   struct APP_LIST_EXPORT SpeechButtonProperty {
     SpeechButtonProperty(const gfx::ImageSkia& on_icon,
                          const base::string16& on_tooltip,
                          const gfx::ImageSkia& off_icon,
-                         const base::string16& off_tooltip);
+                         const base::string16& off_tooltip,
+                         const base::string16& accessible_name);
     ~SpeechButtonProperty();
 
     // The icon/tooltip when the hotword is on.
     gfx::ImageSkia on_icon;
     base::string16 on_tooltip;
 
     // The icon/tooltip when the hotword is off.
     gfx::ImageSkia off_icon;
     base::string16 off_tooltip;
+
+    // The accessibility name of the button.
+    base::string16 accessible_name;
   };
 
   SearchBoxModel();
   ~SearchBoxModel();
 
   // Sets/gets the icon on the left side of edit box.
   void SetIcon(const gfx::ImageSkia& icon);
   const gfx::ImageSkia& icon() const { return icon_; }
 
   // Sets/gets the properties for the button of speech recognition.
@@ skipping 33 matching lines @@
   base::string16 text_;
 
   ObserverList<SearchBoxModelObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchBoxModel);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_SEARCH_BOX_MODEL_H_