Added more policy UMA metrics.

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

Index: components/policy/core/common/cloud/user_cloud_policy_store.cc
diff --git a/components/policy/core/common/cloud/user_cloud_policy_store.cc b/components/policy/core/common/cloud/user_cloud_policy_store.cc
index 3d298e6f0204e1c5fbb432089b1c696eb5ed7e9b..99118962b2582d48335defda8dbdaedb99ba0fe6 100644
--- a/components/policy/core/common/cloud/user_cloud_policy_store.cc
+++ b/components/policy/core/common/cloud/user_cloud_policy_store.cc
@@ -28,6 +28,7 @@ enum PolicyLoadStatus {
   // Could not load the previously stored policy due to either a parse or
   // file read error.
   LOAD_RESULT_LOAD_ERROR,
+  LOAD_RESULT_SIZE,

[Thiemo Nagel, 2014/07/18 12:12:26]

Please add a comment that SIZE must be last and is not a real PolicyLoadStatus.

[Andrew T Wilson (Slow), 2014/07/24 15:25:56]

Done.

 };
 
 // Struct containing the result of a policy load - if |status| ==
@@ -221,6 +222,9 @@ void UserCloudPolicyStore::Load() {
 
 void UserCloudPolicyStore::PolicyLoaded(bool validate_in_background,
                                         PolicyLoadResult result) {
+  UMA_HISTOGRAM_ENUMERATION("Enterprise.UserCloudPolicyStore.LoadStatus",
+                            result.status,
+                            LOAD_RESULT_SIZE);
   switch (result.status) {
     case LOAD_RESULT_LOAD_ERROR:
       status_ = STATUS_LOAD_ERROR;
@@ -274,6 +278,10 @@ void UserCloudPolicyStore::InstallLoadedPolicyAfterValidation(
     bool doing_key_rotation,
     const std::string& signing_key,
     UserCloudPolicyValidator* validator) {
+  UMA_HISTOGRAM_ENUMERATION(
+      "Enterprise.UserCloudPolicyStore.LoadValidationStatus",
+      validator->status(),
+      CloudPolicyValidatorBase::VALIDATION_STATUS_SIZE);
   validation_status_ = validator->status();
   if (!validator->success()) {
     DVLOG(1) << "Validation failed: status=" << validation_status_;
@@ -416,6 +424,10 @@ void UserCloudPolicyStore::Validate(
 
 void UserCloudPolicyStore::StorePolicyAfterValidation(
     UserCloudPolicyValidator* validator) {
+  UMA_HISTOGRAM_ENUMERATION(
+      "Enterprise.UserCloudPolicyStore.StoreValidationStatus",
+      validator->status(),
+      CloudPolicyValidatorBase::VALIDATION_STATUS_SIZE);
   validation_status_ = validator->status();
   DVLOG(1) << "Policy validation complete: status = " << validation_status_;
   if (!validator->success()) {