UMA metrics for cloud policies.

chrome/browser/policy/enterprise_metrics.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_POLICY_ENTERPRISE_METRICS_H_
+#define CHROME_BROWSER_POLICY_ENTERPRISE_METRICS_H_
+#pragma once
+
+namespace policy {
+
+// Metrics collected for enterprise events.
+
+// Events related to fetching, saving and loading DM server tokens.
+// These metrics are collected both for device and user tokens.
+enum MetricToken {
+  // An attempt was made to load a locally cached token.
+  kMetricTokenLoadRequested = 0,

[kmixter1, 2011/06/30 23:28:59]

Do you want to instead have loadsuccess?  Otherwise you can't compute % of loads
that failed. (it's not quite just the difference due to incomplete requests)
Same with TokenSave, PolicyLoad/Save.

[Joao da Silva, 2011/07/07 15:30:13]

Agree. The last CL is now logging successful loads/stores, instead of requests
to load/store.

+  // Reading a cached token from disk failed.
+  kMetricTokenLoadFailed,
+
+  // A token fetch request was sent to the DM server.
+  kMetricTokenFetchRequested,
+  // The request was invalid, or the HTTP request failed.
+  kMetricTokenFetchRequestFailed,
+  // Error HTTP status received, or the DM server failed in another way.
+  kMetricTokenFetchServerFailed,
+  // A response to the fetch request was received.
+  kMetricTokenFetchResponseReceived,
+  // The response received was invalid. This happens when some expected data
+  // was not present in the response.
+  kMetricTokenFetchBadResponse,
+  // DM server reported that management is not supported.
+  kMetricTokenFetchManagementNotSupported,
+  // DM server reported that the given device ID was not found.
+  kMetricTokenFetchDeviceNotFound,
+  // DM token successfully retrieved.
+  kMetricTokenFetchOK,
+
+  // An attempt was made to cache a token to disk.
+  kMetricTokenStoreRequested,
+  // Caching a token to disk failed.
+  kMetricTokenStoreFailed,
+
+  kMetricTokenSize  // Must be the last.
+};
+
+// Events related to fetching, saving and loading user and device policies.
+enum MetricPolicy {
+  // An attempt was made to load a locally cached policy.
+  kMetricPolicyLoadRequested = 0,
+  // Reading a cached policy from disk failed.
+  kMetricPolicyLoadFailed,
+
+  // A policy fetch request was sent to the DM server.
+  kMetricPolicyFetchRequested,
+  // The request was invalid, or the HTTP request failed.
+  kMetricPolicyFetchRequestFailed,
+  // Error HTTP status received, or the DM server failed in another way.
+  kMetricPolicyFetchServerFailed,
+  // Policy not found for the given user or device.
+  kMetricPolicyFetchNotFound,
+  // DM server didn't accept the token used in the request.
+  kMetricPolicyFetchInvalidToken,
+  // A response to the policy fetch request was received.
+  kMetricPolicyFetchResponseReceived,
+  // The policy response message didn't contain a policy, or other data was
+  // missing.
+  kMetricPolicyFetchBadResponse,
+  // Failed to decode the policy.
+  kMetricPolicyFetchInvalidPolicy,
+  // The device policy was rejected because its signature was invalid.
+  kMetricPolicyFetchBadSignature,
+  // Rejected policy because its timestamp is in the future.
+  kMetricPolicyFetchTimestampInFuture,
+  // Device policy rejected because the device is not managed.
+  kMetricPolicyFetchNonEnterpriseDevice,
+  // The policy was provided for a username that is different from the device
+  // owner, and the policy was rejected.
+  kMetricPolicyFetchUserMismatch,
+  // The policy was rejected for another reason. Currently this can happen
+  // only for device policies, when the SignedSettings fail to store or retrieve
+  // a stored policy.
+  kMetricPolicyFetchOtherFailed,
+  // The fetched policy was accepted.
+  kMetricPolicyFetchOK,
+  // The policy just fetched didn't have any changes compared to the cached
+  // policy.
+  kMetricPolicyFetchNotModified,
+
+  // An attempt was made to cache a policy to disk.
+  kMetricPolicyStoreRequested,
+  // Caching a policy to disk failed.
+  kMetricPolicyStoreFailed,
+
+  kMetricPolicySize  // Must be the last.
+};
+
+// Events related to device enrollment.
+enum MetricEnrollment {
+  // The enrollment screen was closed without completing the enrollment
+  // process.
+  kMetricEnrollmentCancelled = 0,
+  // The user submitted credentials and started the enrollment process.
+  kMetricEnrollmentStarted,
+  // Enrollment failed due to a network error.
+  kMetricEnrollmentNetworkFailed,
+  // Enrollment failed because logging in to Gaia failed.
+  kMetricEnrollmentLoginFailed,
+  // Enrollment failed because it is not supported for the account used.
+  kMetricEnrollmentNotSupported,
+  // Enrollment failed because it failed to apply device policy.
+  kMetricEnrollmentPolicyFailed,
+  // Enrollment failed due to an unexpected error. This currently happens when
+  // the Gaia auth token is not issued for the DM service, the device cloud
+  // policy subsystem isn't initialized, or when fetching Gaia tokens fails
+  // for an unknown reason.
+  kMetricEnrollmentOtherFailed,
+  // Enrollment was successful.
+  kMetricEnrollmentOK,
+
+  kMetricEnrollmentSize  // Must be the last.
+};
+
+// Names for the UMA counters. They are shared from here since the events
+// from the same enum above can be triggered in different files, and must use
+// the same UMA histogram name.
+extern const char kMetricToken[];
+extern const char kMetricPolicy[];
+extern const char kMetricEnrollment[];
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_POLICY_ENTERPRISE_METRICS_H_