Add a X-Requested-With header to URL requests for PPAPI Flash (only).

content/test/ppapi_unittest.cc

Index: content/test/ppapi_unittest.cc
diff --git a/content/test/ppapi_unittest.cc b/content/test/ppapi_unittest.cc
index 8714550842360d8dd9a734ee735aca1e3d400472..ab2955b596a31340e7c0b0941e6f564472c105fe 100644
--- a/content/test/ppapi_unittest.cc
+++ b/content/test/ppapi_unittest.cc
@@ -78,7 +78,7 @@ void PpapiUnittest::SetUp() {
   message_loop_.reset(new base::MessageLoop());
 
   // Initialize the mock module.
-  module_ = new PluginModule("Mock plugin", base::FilePath(),
+  module_ = new PluginModule("Mock plugin", "1.0", base::FilePath(),
                              ppapi::PpapiPermissions());
   ppapi::PpapiGlobals::Get()->ResetMainThreadMessageLoopForTesting();
   PepperPluginInfo::EntryPoints entry_points;