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

webkit/plugins/ppapi/plugin_module.cc

Index: webkit/plugins/ppapi/plugin_module.cc
diff --git a/webkit/plugins/ppapi/plugin_module.cc b/webkit/plugins/ppapi/plugin_module.cc
index 046140de4834f4f168f35731fec01748e615f636..91d8b2a6cda6795ea72efb4716769ff494a591d0 100644
--- a/webkit/plugins/ppapi/plugin_module.cc
+++ b/webkit/plugins/ppapi/plugin_module.cc
@@ -399,6 +399,7 @@ PluginModule::EntryPoints::EntryPoints()
 // PluginModule ----------------------------------------------------------------
 
 PluginModule::PluginModule(const std::string& name,
+                           const std::string& version,
                            const FilePath& path,
                            PluginDelegate::ModuleLifetime* lifetime_delegate,
                            const ::ppapi::PpapiPermissions& perms)
@@ -409,6 +410,7 @@ PluginModule::PluginModule(const std::string& name,
       broker_(NULL),
       library_(NULL),
       name_(name),
+      version_(version),
       path_(path),
       permissions_(perms),
       reserve_instance_id_(NULL) {
@@ -499,6 +501,7 @@ scoped_refptr<PluginModule> PluginModule::CreateModuleForNaClInstance() {
   // plugin in the usual sense, so it isn't tracked by the browser.
   scoped_refptr<PluginModule> nacl_module(
       new PluginModule(name_,
+                       version_,
                        path_,
                        NULL,  // no lifetime_delegate
                        permissions_));