ui/aura: Use base::string16 now that string16 was moved into base namespace.

ui/aura/window.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 UI_AURA_WINDOW_H_
 #define UI_AURA_WINDOW_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 75 matching lines @@
   // shell -- Aura itself shouldn't contain type-specific logic.
   client::WindowType type() const { return type_; }
   void SetType(client::WindowType type);
 
   int id() const { return id_; }
   void set_id(int id) { id_ = id; }
 
   const std::string& name() const { return name_; }
   void SetName(const std::string& name);
 
-  const string16 title() const { return title_; }
-  void set_title(const string16& title) { title_ = title; }
+  const base::string16 title() const { return title_; }
+  void set_title(const base::string16& title) { title_ = title; }
 
   bool transparent() const { return transparent_; }
   void SetTransparent(bool transparent);
 
   WindowDelegate* delegate() { return delegate_; }
 
   const gfx::Rect& bounds() const;
 
   Window* parent() { return parent_; }
   const Window* parent() const { return parent_; }
@@ skipping 371 matching lines @@
   Window* transient_parent_;
 
   // The visibility state of the window as set by Show()/Hide(). This may differ
   // from the visibility of the underlying layer, which may remain visible after
   // the window is hidden (e.g. to animate its disappearance).
   bool visible_;
 
   int id_;
   std::string name_;
 
-  string16 title_;
+  base::string16 title_;
 
   // Whether layer is initialized as non-opaque.
   bool transparent_;
 
   scoped_ptr<ui::EventHandler> event_filter_;
   scoped_ptr<LayoutManager> layout_manager_;
 
   void* user_data_;
 
   // Makes the window pass all events through to any windows behind it.
@@ skipping 16 matching lines @@
   };
 
   std::map<const void*, Value> prop_map_;
 
   DISALLOW_COPY_AND_ASSIGN(Window);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_H_