Add text offset to OnSurroundingTextChanged

ui/base/ime/chromeos/mock_ime_engine_handler.cc

 // Copyright 2013 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/base/ime/chromeos/mock_ime_engine_handler.h"
 #include "ui/base/ime/text_input_flags.h"
 
 namespace chromeos {
 
 MockIMEEngineHandler::MockIMEEngineHandler()
@@ skipping 48 matching lines @@
   ++process_key_event_call_count_;
   last_processed_key_event_.reset(new ui::KeyEvent(key_event));
   last_passed_callback_ = callback;
 }
 
 void MockIMEEngineHandler::CandidateClicked(uint32 index) {
 }
 
 void MockIMEEngineHandler::SetSurroundingText(const std::string& text,
                                               uint32 cursor_pos,
-                                              uint32 anchor_pos) {
+                                              uint32 anchor_pos,
+                                              uint32 offset_pos) {
   ++set_surrounding_text_call_count_;
   last_set_surrounding_text_ = text;
   last_set_surrounding_cursor_pos_ = cursor_pos;
   last_set_surrounding_anchor_pos_ = anchor_pos;
 }
 
 void MockIMEEngineHandler::SetCompositionBounds(
     const std::vector<gfx::Rect>& bounds) {
 }
 
 } // namespace chromeos