Added support for signed policy blobs on desktop.

chrome/browser/policy/cloud/policy_header_service_factory.cc

Index: chrome/browser/policy/cloud/policy_header_service_factory.cc
diff --git a/chrome/browser/policy/cloud/policy_header_service_factory.cc b/chrome/browser/policy/cloud/policy_header_service_factory.cc
index 7395ae5a94efb8f1300955140601f625875474b1..c7ce7fa2a15886887f1111a0a1047624ced16302 100644
--- a/chrome/browser/policy/cloud/policy_header_service_factory.cc
+++ b/chrome/browser/policy/cloud/policy_header_service_factory.cc
@@ -104,8 +104,10 @@ PolicyHeaderServiceFactory::BuildServiceInstanceFor(
 #endif
 
   scoped_ptr<PolicyHeaderService> service = make_scoped_ptr(
-      new PolicyHeaderService(
-          device_management_service->GetServerUrl(), user_store, device_store));
+      new PolicyHeaderService(device_management_service->GetServerUrl(),
+                              kPolicyVerificationKeyHash,
+                              user_store,
+                              device_store));
   return new PolicyHeaderServiceWrapper(service.Pass());
 }