Removed policy::PolicyNamespaceKey.

chrome/browser/chromeos/policy/enrollment_handler_chromeos.cc

Index: chrome/browser/chromeos/policy/enrollment_handler_chromeos.cc
diff --git a/chrome/browser/chromeos/policy/enrollment_handler_chromeos.cc b/chrome/browser/chromeos/policy/enrollment_handler_chromeos.cc
index 7fc8d819fbd6d4440f05663b5681e5816a4fd9a5..2b8e785f5d40b07627be18b6435db47fc1289a10 100644
--- a/chrome/browser/chromeos/policy/enrollment_handler_chromeos.cc
+++ b/chrome/browser/chromeos/policy/enrollment_handler_chromeos.cc
@@ -76,8 +76,7 @@ EnrollmentHandlerChromeOS::EnrollmentHandlerChromeOS(
         management_mode_ == em::PolicyData::CONSUMER_MANAGED);
   store_->AddObserver(this);
   client_->AddObserver(this);
-  client_->AddNamespaceToFetch(PolicyNamespaceKey(
-      dm_protocol::kChromeDevicePolicyType, std::string()));
+  client_->AddPolicyTypeToFetch(dm_protocol::kChromeDevicePolicyType, "");
 }
 
 EnrollmentHandlerChromeOS::~EnrollmentHandlerChromeOS() {
@@ -105,8 +104,8 @@ void EnrollmentHandlerChromeOS::OnPolicyFetched(CloudPolicyClient* client) {
   enrollment_step_ = STEP_VALIDATION;
 
   // Validate the policy.
-  const em::PolicyFetchResponse* policy = client_->GetPolicyFor(
-      PolicyNamespaceKey(dm_protocol::kChromeDevicePolicyType, std::string()));
+  const em::PolicyFetchResponse* policy =
+      client_->GetPolicyFor(dm_protocol::kChromeDevicePolicyType, "");
   if (!policy) {
     ReportResult(EnrollmentStatus::ForFetchError(
         DM_STATUS_RESPONSE_DECODING_ERROR));