Add UMA histograms for policy loading.

chrome/browser/policy/policy_loader_mac.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/policy/policy_loader_mac.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/path_service.h"
 #include "base/platform_file.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/policy/policy_bundle.h"
+#include "chrome/browser/policy/policy_load_status.h"
 #include "chrome/browser/policy/policy_map.h"
 #include "chrome/browser/policy/preferences_mac.h"
 #include "chrome/common/chrome_paths.h"
 #include "policy/policy_constants.h"
 
 using base::mac::CFCast;
 using base::mac::ScopedCFTypeRef;
 
 namespace policy {
 
@@ skipping 63 matching lines @@
         base::Bind(&PolicyLoaderMac::OnFileUpdated, base::Unretained(this)));
   }
 }
 
 scoped_ptr<PolicyBundle> PolicyLoaderMac::Load() {
   preferences_->AppSynchronize(kCFPreferencesCurrentApplication);
   scoped_ptr<PolicyBundle> bundle(new PolicyBundle());
   PolicyMap& chrome_policy =
       bundle->Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()));
 
+  PolicyLoadStatusSample status;
+  bool policy_present = false;
   const PolicyDefinitionList::Entry* current;
   for (current = policy_list_->begin; current != policy_list_->end; ++current) {
     base::mac::ScopedCFTypeRef<CFStringRef> name(
         base::SysUTF8ToCFStringRef(current->name));
     base::mac::ScopedCFTypeRef<CFPropertyListRef> value(
         preferences_->CopyAppValue(name, kCFPreferencesCurrentApplication));
     if (!value.get())
       continue;
+    policy_present = true;
     bool forced =
         preferences_->AppValueIsForced(name, kCFPreferencesCurrentApplication);
     PolicyLevel level = forced ? POLICY_LEVEL_MANDATORY :
                                  POLICY_LEVEL_RECOMMENDED;
     // TODO(joaodasilva): figure the policy scope.
     base::Value* policy = CreateValueFromProperty(value);
     if (policy)
       chrome_policy.Set(current->name, level, POLICY_SCOPE_USER, policy);
+    else
+      status.Add(POLICY_LOAD_STATUS_PARSE_ERROR);
   }
 
+  if (!policy_present)
+    status.Add(POLICY_LOAD_STATUS_NO_POLICY);
+
   return bundle.Pass();
 }
 
 base::Time PolicyLoaderMac::LastModificationTime() {
   base::PlatformFileInfo file_info;
   if (!file_util::GetFileInfo(managed_policy_path_, &file_info) ||
       file_info.is_directory) {
     return base::Time();
   }
 
@@ skipping 43 matching lines @@
 
   return NULL;
 }
 
 void PolicyLoaderMac::OnFileUpdated(const base::FilePath& path, bool error) {
   if (!error)
     Reload(false);
 }
 
 }  // namespace policy