Replace FOR_EACH_OBSERVER in c/b/chromeos with range-based for

chrome/browser/chromeos/policy/affiliated_invalidation_service_provider_impl.cc

 // Copyright 2015 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/chromeos/policy/affiliated_invalidation_service_provider_impl.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 236 matching lines @@
   invalidation_service_ = nullptr;
   SetInvalidationService(invalidation_service);
 
   if (invalidation_service_ &&
       device_invalidation_service_ &&
       invalidation_service_ != device_invalidation_service_.get()) {
     // If a different invalidation service is being made available to consumers
     // now, destroy the device-global one.
     DestroyDeviceInvalidationService();
   }
-
 }
 
 void
 AffiliatedInvalidationServiceProviderImpl::OnInvalidationServiceDisconnected(
     invalidation::InvalidationService* invalidation_service) {
   DCHECK(!is_shut_down_);
 
   if (invalidation_service != invalidation_service_) {
     // If the invalidation service which disconnected was not being made
     // available to consumers, return.
@@ skipping 61 matching lines @@
     // available to consumers immediately. Otherwise, the invalidation service
     // will be made available to clients when it successfully connects.
     OnInvalidationServiceConnected(device_invalidation_service_.get());
   }
 }
 
 void AffiliatedInvalidationServiceProviderImpl::SetInvalidationService(
     invalidation::InvalidationService* invalidation_service) {
   DCHECK(!invalidation_service_);
   invalidation_service_ = invalidation_service;
-  FOR_EACH_OBSERVER(Consumer,
-                    consumers_,
-                    OnInvalidationServiceSet(invalidation_service_));
+  for (auto& observer : consumers_)
+    observer.OnInvalidationServiceSet(invalidation_service_);
 }
 
 void
 AffiliatedInvalidationServiceProviderImpl::DestroyDeviceInvalidationService() {
   device_invalidation_service_observer_.reset();
   device_invalidation_service_.reset();
 }
 
 }  // namespace policy