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

ui/base/dragdrop/os_exchange_data_provider_aurax11.h

Index: ui/base/dragdrop/os_exchange_data_provider_aurax11.h
diff --git a/ui/base/dragdrop/os_exchange_data_provider_aurax11.h b/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
index 09568e2093a53e9e09d9f2b89eb0bc5a42a58d5a..621256331753204b5d56344af563ca00e9addb51 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
+++ b/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
@@ -56,15 +56,15 @@ class UI_EXPORT OSExchangeDataProviderAuraX11
   SelectionFormatMap GetFormatMap() const;
 
   // Overridden from OSExchangeData::Provider:
-  virtual void SetString(const string16& data) OVERRIDE;
-  virtual void SetURL(const GURL& url, const string16& title) OVERRIDE;
+  virtual void SetString(const base::string16& data) OVERRIDE;
+  virtual void SetURL(const GURL& url, const base::string16& title) OVERRIDE;
   virtual void SetFilename(const base::FilePath& path) OVERRIDE;
   virtual void SetFilenames(
       const std::vector<OSExchangeData::FileInfo>& filenames) OVERRIDE;
   virtual void SetPickledData(const OSExchangeData::CustomFormat& format,
                               const Pickle& data) OVERRIDE;
-  virtual bool GetString(string16* data) const OVERRIDE;
-  virtual bool GetURLAndTitle(GURL* url, string16* title) const OVERRIDE;
+  virtual bool GetString(base::string16* data) const OVERRIDE;
+  virtual bool GetURLAndTitle(GURL* url, base::string16* title) const OVERRIDE;
   virtual bool GetFilename(base::FilePath* path) const OVERRIDE;
   virtual bool GetFilenames(
       std::vector<OSExchangeData::FileInfo>* filenames) const OVERRIDE;
@@ -76,8 +76,9 @@ class UI_EXPORT OSExchangeDataProviderAuraX11
   virtual bool HasCustomFormat(const OSExchangeData::CustomFormat& format) const
       OVERRIDE;
 
-  virtual void SetHtml(const string16& html, const GURL& base_url) OVERRIDE;
-  virtual bool GetHtml(string16* html, GURL* base_url) const OVERRIDE;
+  virtual void SetHtml(const base::string16& html,
+                       const GURL& base_url) OVERRIDE;
+  virtual bool GetHtml(base::string16* html, GURL* base_url) const OVERRIDE;
   virtual bool HasHtml() const OVERRIDE;
   virtual void SetDragImage(const gfx::ImageSkia& image,
                             const gfx::Vector2d& cursor_offset) OVERRIDE;