Convert string16 to base::string16 in content.

content/browser/renderer_host/render_widget_host_view_gtk.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_
 
 #include <gdk/gdk.h>
 
 #include <string>
@@ skipping 75 matching lines @@
   virtual void ImeCancelComposition() OVERRIDE;
   virtual void DidUpdateBackingStore(
       const gfx::Rect& scroll_rect,
       const gfx::Vector2d& scroll_delta,
       const std::vector<gfx::Rect>& copy_rects,
       const ui::LatencyInfo& latency_info) OVERRIDE;
   virtual void RenderProcessGone(base::TerminationStatus status,
                                  int error_code) OVERRIDE;
   virtual void Destroy() OVERRIDE;
   virtual void WillDestroyRenderWidget(RenderWidgetHost* rwh) {}
-  virtual void SetTooltipText(const string16& tooltip_text) OVERRIDE;
-  virtual void SelectionChanged(const string16& text,
+  virtual void SetTooltipText(const base::string16& tooltip_text) OVERRIDE;
+  virtual void SelectionChanged(const base::string16& text,
                                 size_t offset,
                                 const gfx::Range& range) OVERRIDE;
   virtual void SelectionBoundsChanged(
       const ViewHostMsg_SelectionBounds_Params& params) OVERRIDE;
   virtual void ScrollOffsetChanged() OVERRIDE;
   virtual BackingStore* AllocBackingStore(const gfx::Size& size) OVERRIDE;
   virtual void CopyFromCompositingSurface(
       const gfx::Rect& src_subrect,
       const gfx::Size& dst_size,
       const base::Callback<void(bool, const SkBitmap&)>& callback) OVERRIDE;
@@ skipping 223 matching lines @@
   scoped_ptr<BrowserAccessibilityManager> browser_accessibility_manager_;
 
   ui::GtkSignalRegistrar signals_;
 
   ui::LatencyInfo software_latency_info_;
 };
 
 }  // namespace content
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_