Remove wstring from gfx.

gfx/platform_font_gtk.h

Index: gfx/platform_font_gtk.h
===================================================================
--- gfx/platform_font_gtk.h	(revision 71043)
+++ gfx/platform_font_gtk.h	(working copy)
@@ -20,7 +20,7 @@
   PlatformFontGtk();
   explicit PlatformFontGtk(const Font& other);
   explicit PlatformFontGtk(NativeFont native_font);
-  PlatformFontGtk(const std::wstring& font_name,
+  PlatformFontGtk(const string16& font_name,
                   int font_size);
 
   // Converts |gfx_font| to a new pango font. Free the returned font with
@@ -45,7 +45,7 @@
   virtual int GetStringWidth(const string16& text) const;
   virtual int GetExpectedTextWidth(int length) const;
   virtual int GetStyle() const;
-  virtual const std::wstring& GetFontName() const;
+  virtual const string16& GetFontName() const;
   virtual int GetFontSize() const;
   virtual NativeFont GetNativeFont() const;
 
@@ -53,15 +53,15 @@
   // Create a new instance of this object with the specified properties. Called
   // from DeriveFont.
   PlatformFontGtk(SkTypeface* typeface,
-                  const std::wstring& name,
+                  const string16& name,
                   int size,
                   int style);
   virtual ~PlatformFontGtk();
 
   // Initialize this object.
-  void InitWithNameAndSize(const std::wstring& font_name, int font_size);
+  void InitWithNameAndSize(const string16& font_name, int font_size);
   void InitWithTypefaceNameSizeAndStyle(SkTypeface* typeface,
-                                        const std::wstring& name,
+                                        const string16& name,
                                         int size,
                                         int style);
   void InitFromPlatformFont(const PlatformFontGtk* other);
@@ -86,7 +86,7 @@
 
   // Additional information about the face
   // Skia actually expects a family name and not a font name.
-  std::wstring font_family_;
+  string16 font_family_;
   int font_size_;
   int style_;