Add base:: to string16s in win8/.

win8/metro_driver/ime/text_store_delegate.h

 // 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.
 
 #ifndef WIN8_METRO_DRIVER_IME_TEXT_STORE_DELEGATE_H_
 #define WIN8_METRO_DRIVER_IME_TEXT_STORE_DELEGATE_H_
 
 #include <vector>
 
 #include <windows.h>
@@ skipping 12 matching lines @@
 // virtual text store whenever an IME updates the composition or commits text.
 // Objects that implement this delegate are also responsible for calculating
 // the character position of composition and caret position upon request.
 class TextStoreDelegate {
  public:
   virtual ~TextStoreDelegate() {}
 
   // Called when on-going composition is updated. An empty |text| represents
   // that the composition is canceled.
   virtual void OnCompositionChanged(
-      const string16& text,
+      const base::string16& text,
       int32 selection_start,
       int32 selection_end,
       const std::vector<metro_viewer::UnderlineInfo>& underlines) = 0;
 
   // Called when |text| is committed.
-  virtual void OnTextCommitted(const string16& text) = 0;
+  virtual void OnTextCommitted(const base::string16& text) = 0;
 
   // Called when an IME requests the caret position. Objects that implement
   // this method must return the caret position in screen coordinates.
   virtual RECT GetCaretBounds() = 0;
 
   // Called when an IME requests the bounding box of an character whose
   // index is |index| in the on-going composition. position. Objects that
   // implement this method must return true and fill the character bounds into
   // |rect| in screen coordinates.
   // Should return false if |index| is invalid.
   virtual bool GetCompositionCharacterBounds(uint32 index, RECT* rect) = 0;
 };
 
 }  // namespace metro_driver
 
 #endif  // WIN8_METRO_DRIVER_IME_TEXT_STORE_DELEGATE_H_