Add hooks to permission layer for permission action reporting

components/browser_sync/browser/profile_sync_service.h

 // 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.
 
 #ifndef COMPONENTS_BROWSER_SYNC_BROWSER_PROFILE_SYNC_SERVICE_H_
 #define COMPONENTS_BROWSER_SYNC_BROWSER_PROFILE_SYNC_SERVICE_H_
 
 #include <memory>
 #include <set>
 #include <string>
@@ skipping 615 matching lines @@
   // Our asynchronous backend to communicate with sync components living on
   // other threads.
   std::unique_ptr<browser_sync::SyncBackendHost> backend_;
 
   // Was the last SYNC_PASSPHRASE_REQUIRED notification sent because it
   // was required for encryption, decryption with a cached passphrase, or
   // because a new passphrase is required?
   syncer::PassphraseRequiredReason passphrase_required_reason_;
 
  private:
+  friend class PermissionUmaUtilTest;

[raymes, 2016/06/22 02:11:13]

nit: move this down to where the other "friend" declarations are

[stefanocs, 2016/06/22 04:28:12]

Done.

+
   enum UnrecoverableErrorReason {
     ERROR_REASON_UNSET,
     ERROR_REASON_SYNCER,
     ERROR_REASON_BACKEND_INIT_FAILURE,
     ERROR_REASON_CONFIGURATION_RETRY,
     ERROR_REASON_CONFIGURATION_FAILURE,
     ERROR_REASON_ACTIONABLE_ERROR,
     ERROR_REASON_LIMIT
   };
 
@@ skipping 374 matching lines @@
   base::WeakPtrFactory<ProfileSyncService> startup_controller_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(
     const syncer::SyncProtocolError& error);
 
 
 #endif  // COMPONENTS_BROWSER_SYNC_BROWSER_PROFILE_SYNC_SERVICE_H_