Support getting the font list in Pepper. This currently only works out of

webkit/plugins/ppapi/ppb_font_impl.h

Index: webkit/plugins/ppapi/ppb_font_impl.h
===================================================================
--- webkit/plugins/ppapi/ppb_font_impl.h	(revision 85766)
+++ webkit/plugins/ppapi/ppb_font_impl.h	(working copy)
@@ -27,10 +27,6 @@
   PPB_Font_Impl(PluginInstance* instance, const PP_FontDescription_Dev& desc);
   virtual ~PPB_Font_Impl();
 
-  // Returns a pointer to the interface implementing PPB_Font that is exposed to
-  // the plugin.
-  static const PPB_Font_Dev* GetInterface();
-
   // ResourceObjectBase.
   virtual ::ppapi::thunk::PPB_Font_API* AsFont_API() OVERRIDE;
 
@@ -58,6 +54,22 @@
   DISALLOW_COPY_AND_ASSIGN(PPB_Font_Impl);
 };
 
+class PPB_Font_FunctionImpl : public ::ppapi::FunctionGroupBase,
+                              public ::ppapi::thunk::PPB_Font_FunctionAPI {
+ public:
+  PPB_Font_FunctionImpl();
+  ~PPB_Font_FunctionImpl();
+
+  // FunctionGroupBase overrides.
+  virtual ::ppapi::thunk::PPB_Font_FunctionAPI* AsFont_FunctionAPI();
+
+  // PPB_Font_FunctionAPI implementation.
+  virtual PP_Var GetFontFamilies(PP_Instance instance) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PPB_Font_FunctionImpl);
+};
+
 }  // namespace ppapi
 }  // namespace webkit