Removed policy::PolicyNamespaceKey.

components/policy/core/common/cloud/cloud_policy_client.cc

Index: components/policy/core/common/cloud/cloud_policy_client.cc
diff --git a/components/policy/core/common/cloud/cloud_policy_client.cc b/components/policy/core/common/cloud/cloud_policy_client.cc
index 3014fd7f1585755d8825c7c6ad01341d57aec0e5..498b4c7f4f4b77ee591ff29d522b69ae3d3f3be6 100644
--- a/components/policy/core/common/cloud/cloud_policy_client.cc
+++ b/components/policy/core/common/cloud/cloud_policy_client.cc
@@ -65,8 +65,8 @@ CloudPolicyClient::CloudPolicyClient(
       public_key_version_valid_(false),
       invalidation_version_(0),
       fetched_invalidation_version_(0),
-      service_(service),                  // Can be NULL for unit tests.
-      status_provider_(status_provider),  // Can be NULL for unit tests.
+      service_(service),                  // Can be null for unit tests.
+      status_provider_(status_provider),  // Can be null for unit tests.
       status_(DM_STATUS_SUCCESS),
       request_context_(request_context) {
 }
@@ -146,7 +146,7 @@ void CloudPolicyClient::SetInvalidationInfo(
 
 void CloudPolicyClient::FetchPolicy() {
   CHECK(is_registered());
-  CHECK(!namespaces_to_fetch_.empty());
+  CHECK(!types_to_fetch_.empty());
 
   request_job_.reset(
       service_->CreateJob(DeviceManagementRequestJob::TYPE_POLICY_FETCH,
@@ -159,12 +159,11 @@ void CloudPolicyClient::FetchPolicy() {
 
   // Build policy fetch requests.
   em::DevicePolicyRequest* policy_request = request->mutable_policy_request();
-  for (NamespaceSet::iterator it = namespaces_to_fetch_.begin();
-       it != namespaces_to_fetch_.end(); ++it) {
+  for (const auto& type_to_fetch : types_to_fetch_) {
     em::PolicyFetchRequest* fetch_request = policy_request->add_request();
-    fetch_request->set_policy_type(it->first);
-    if (!it->second.empty())
-      fetch_request->set_settings_entity_id(it->second);
+    fetch_request->set_policy_type(type_to_fetch.first);
+    if (!type_to_fetch.second.empty())
+      fetch_request->set_settings_entity_id(type_to_fetch.second);
 
     // Request signed policy blobs to help prevent tampering on the client.
     fetch_request->set_signature_type(em::PolicyFetchRequest::SHA1_RSA);
@@ -175,7 +174,7 @@ void CloudPolicyClient::FetchPolicy() {
       fetch_request->set_verification_key_hash(verification_key_hash_);
 
     // These fields are included only in requests for chrome policy.
-    if (IsChromePolicy(it->first)) {
+    if (IsChromePolicy(type_to_fetch.first)) {
       if (submit_machine_id_ && !machine_id_.empty())
         fetch_request->set_machine_id(machine_id_);
       if (!last_policy_timestamp_.is_null()) {
@@ -288,12 +287,16 @@ void CloudPolicyClient::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
-void CloudPolicyClient::AddNamespaceToFetch(const PolicyNamespaceKey& key) {
-  namespaces_to_fetch_.insert(key);
+void CloudPolicyClient::AddPolicyTypeToFetch(
+    const std::string& policy_type,
+    const std::string& settings_entity_id) {
+  types_to_fetch_.insert(std::make_pair(policy_type, settings_entity_id));
 }
 
-void CloudPolicyClient::RemoveNamespaceToFetch(const PolicyNamespaceKey& key) {
-  namespaces_to_fetch_.erase(key);
+void CloudPolicyClient::RemovePolicyTypeToFetch(
+    const std::string& policy_type,
+    const std::string& settings_entity_id) {
+  types_to_fetch_.erase(std::make_pair(policy_type, settings_entity_id));
 }
 
 void CloudPolicyClient::SetStateKeysToUpload(
@@ -302,9 +305,11 @@ void CloudPolicyClient::SetStateKeysToUpload(
 }
 
 const em::PolicyFetchResponse* CloudPolicyClient::GetPolicyFor(
-    const PolicyNamespaceKey& key) const {
-  ResponseMap::const_iterator it = responses_.find(key);
-  return it == responses_.end() ? NULL : it->second;
+    const std::string& policy_type,
+    const std::string& settings_entity_id) const {
+  ResponseMap::const_iterator it =
+      responses_.find(std::make_pair(policy_type, settings_entity_id));
+  return it == responses_.end() ? nullptr : it->second;
 }
 
 scoped_refptr<net::URLRequestContextGetter>
@@ -405,7 +410,7 @@ void CloudPolicyClient::OnPolicyFetchCompleted(
       std::string entity_id;
       if (policy_data.has_settings_entity_id())
         entity_id = policy_data.settings_entity_id();
-      PolicyNamespaceKey key(type, entity_id);
+      std::pair<std::string, std::string> key(type, entity_id);
       if (ContainsKey(responses_, key)) {
         LOG(WARNING) << "Duplicate PolicyFetchResponse for type: "
             << type << ", entity: " << entity_id << ", ignoring";