Request text context in the plugin process

ppapi/proxy/ppb_text_input_proxy.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 PPAPI_PROXY_PPB_TEXT_INPUT_PROXY_H_
 #define PPAPI_PROXY_PPB_TEXT_INPUT_PROXY_H_
 
 #include <string>
 
 #include "ppapi/c/pp_instance.h"
@@ skipping 33 matching lines @@
 
   static const ApiID kApiID = API_ID_PPB_TEXT_INPUT;
 
  private:
   // Message handlers.
   void OnMsgSetTextInputType(PP_Instance instance, PP_TextInput_Type type);
   void OnMsgUpdateCaretPosition(PP_Instance instance,
                                 PP_Rect caret,
                                 PP_Rect bounding_box);
   void OnMsgCancelCompositionText(PP_Instance instance);
-  void OnMsgSelectionChanged(PP_Instance instance);
   void OnMsgUpdateSurroundingText(PP_Instance instance,
                                   const std::string& text,
                                   uint32_t caret,
                                   uint32_t anchor);
 
   DISALLOW_COPY_AND_ASSIGN(PPB_TextInput_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_TEXT_INPUT_PROXY_H_