Migrate CandidateWindow::Entry to string16.

ui/base/ime/input_method_chromeos.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/base/ime/input_method_chromeos.h"
 
 #include <algorithm>
 #include <cstring>
 #include <set>
 #include <vector>
@@ skipping 478 matching lines @@
     const chromeos::CompositionText& text,
     uint32 cursor_pos,
     bool visible) {
   if (IsTextInputTypeNone())
     return;
 
   if (!CanComposeInline()) {
     chromeos::IBusPanelCandidateWindowHandlerInterface* candidate_window =
         chromeos::IMEBridge::Get()->GetCandidateWindowHandler();
     if (candidate_window)
-      candidate_window->UpdatePreeditText(text.text(), cursor_pos, visible);
+      candidate_window->UpdatePreeditText(
+          base::UTF8ToUTF16(text.text()), cursor_pos, visible);
   }
 
   // |visible| argument is very confusing. For example, what's the correct
   // behavior when:
   // 1. OnUpdatePreeditText() is called with a text and visible == false, then
   // 2. OnShowPreeditText() is called afterwards.
   //
   // If it's only for clearing the current preedit text, then why not just use
   // OnHidePreeditText()?
   if (!visible) {
@@ skipping 133 matching lines @@
   }
 
   // Use a black thin underline by default.
   if (out_composition->underlines.empty()) {
     out_composition->underlines.push_back(CompositionUnderline(
         0, length, SK_ColorBLACK, false /* thick */));
   }
 }
 
 }  // namespace ui