Migrate CandidateWindow::Entry to string16.

ui/base/ime/chromeos/ime_bridge.h

 // 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.
 
 #ifndef UI_BASE_IME_CHROMEOS_IME_BRIDGE_H_
 #define UI_BASE_IME_CHROMEOS_IME_BRIDGE_H_
 
 #include <string>
 #include "base/basictypes.h"
 #include "base/callback.h"
+#include "base/strings/string16.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/base/ui_base_export.h"
 
 namespace gfx {
 class Rect;
 }  // namespace gfx
 
 namespace ui {
 class CandidateWindow;
@@ skipping 84 matching lines @@
 // A interface to handle the candidate window related method call.
 class UI_BASE_EXPORT IBusPanelCandidateWindowHandlerInterface {
  public:
   virtual ~IBusPanelCandidateWindowHandlerInterface() {}
 
   // Called when the IME updates the lookup table.
   virtual void UpdateLookupTable(const ui::CandidateWindow& candidate_window,
                                  bool visible) = 0;
 
   // Called when the IME updates the preedit text. The |text| is given in
-  // UTF-8 encoding.
-  virtual void UpdatePreeditText(const std::string& text, uint32 cursor_pos,
+  // UTF-16 encoding.
+  virtual void UpdatePreeditText(const base::string16& text,
+                                 uint32 cursor_pos,
                                  bool visible) = 0;
 
   // Called when the application changes its caret bounds.
   virtual void SetCursorBounds(const gfx::Rect& cursor_bounds,
                                const gfx::Rect& composition_head) = 0;
 
   // Called when the text field's focus state is changed.
   // |is_focused| is true when the text field gains the focus.
   virtual void FocusStateChanged(bool is_focused) {}
 
@@ skipping 64 matching lines @@
  protected:
   IMEBridge();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(IMEBridge);
 };
 
 }  // namespace chromeos
 
 #endif  // UI_BASE_IME_CHROMEOS_IME_BRIDGE_H_