Pepper: Add a X-Requested-With header to URL requests done for Pepper plugins.

webkit/plugins/ppapi/plugin_module.h

Index: webkit/plugins/ppapi/plugin_module.h
diff --git a/webkit/plugins/ppapi/plugin_module.h b/webkit/plugins/ppapi/plugin_module.h
index bf417d6882eb556c582b242431e1ed96b4a141bc..b02c70b2f42df62e1aec82682c6ba26219668944 100644
--- a/webkit/plugins/ppapi/plugin_module.h
+++ b/webkit/plugins/ppapi/plugin_module.h
@@ -83,6 +83,7 @@ class WEBKIT_PLUGINS_EXPORT PluginModule :
   // all plugin modules. In practice it will be a global singleton that
   // tracks which modules are alive.
   PluginModule(const std::string& name,
+               const std::string& version,
                const FilePath& path,
                PluginDelegate::ModuleLifetime* lifetime_delegate,
                const ::ppapi::PpapiPermissions& perms);
@@ -140,6 +141,7 @@ class WEBKIT_PLUGINS_EXPORT PluginModule :
   PP_Module pp_module() const { return pp_module_; }
 
   const std::string& name() const { return name_; }
+  const std::string& version() const { return version_; }
   const FilePath& path() const { return path_; }
   const ::ppapi::PpapiPermissions& permissions() const { return permissions_; }
 
@@ -235,8 +237,9 @@ class WEBKIT_PLUGINS_EXPORT PluginModule :
   // presence of the out_of_process_proxy_ value.
   EntryPoints entry_points_;
 
-  // The name and file location of the module.
+  // The name, version, and file location of the module.
   const std::string name_;
+  const std::string version_;
   const FilePath path_;
 
   ::ppapi::PpapiPermissions permissions_;