Remove usage of FOR_EACH_OBSERVER macro in google_apis

google_apis/gaia/account_tracker.cc

 // Copyright 2014 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 "google_apis/gaia/account_tracker.h"
 
 #include "base/logging.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 136 matching lines @@
              accounts_.begin();
          it != accounts_.end();
          ++it) {
       DVLOG(1) << it->first << ":" << it->second.is_signed_in;
     }
   }
 }
 
 void AccountTracker::NotifyAccountAdded(const AccountState& account) {
   DCHECK(!account.ids.gaia.empty());
-  FOR_EACH_OBSERVER(
-      Observer, observer_list_, OnAccountAdded(account.ids));
+  for (auto& observer : observer_list_)
+    observer.OnAccountAdded(account.ids);
 }
 
 void AccountTracker::NotifyAccountRemoved(const AccountState& account) {
   DCHECK(!account.ids.gaia.empty());
-  FOR_EACH_OBSERVER(
-      Observer, observer_list_, OnAccountRemoved(account.ids));
+  for (auto& observer : observer_list_)
+    observer.OnAccountRemoved(account.ids);
 }
 
 void AccountTracker::NotifySignInChanged(const AccountState& account) {
   // TODO(robliao): Remove ScopedTracker below once https://crbug.com/422460 is
   // fixed.
   tracked_objects::ScopedTracker tracking_profile(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "422460 AccountTracker::NotifySignInChanged"));
 
   DCHECK(!account.ids.gaia.empty());
-  FOR_EACH_OBSERVER(Observer,
-                    observer_list_,
-                    OnAccountSignInChanged(account.ids, account.is_signed_in));
+  for (auto& observer : observer_list_)
+    observer.OnAccountSignInChanged(account.ids, account.is_signed_in);
 }
 
 void AccountTracker::UpdateSignInState(const std::string& account_key,
                                        bool is_signed_in) {
   // TODO(robliao): Remove ScopedTracker below once https://crbug.com/422460 is
   // fixed.
   tracked_objects::ScopedTracker tracking_profile(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "422460 AccountTracker::UpdateSignInState"));
 
@@ skipping 193 matching lines @@
                                "AccountIdFetcher",
                                this,
                                "OnNetworkError",
                                "response_code",
                                response_code);
   LOG(ERROR) << "OnNetworkError " << response_code;
   tracker_->OnUserInfoFetchFailure(this);
 }
 
 }  // namespace gaia