Reduce usage of FOR_EACH_OBSERVER macro in components/

components/pairing/fake_controller_pairing_controller.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 "components/pairing/fake_controller_pairing_controller.h"
 
 #include <map>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 215 matching lines @@
 
 void FakeControllerPairingController::StartSession() {
   CHECK(current_stage_ == STAGE_HOST_ENROLLMENT_SUCCESS);
   ChangeStage(STAGE_FINISHED);
 }
 
 void FakeControllerPairingController::ChangeStage(Stage new_stage) {
   if (current_stage_ == new_stage)
     return;
   current_stage_ = new_stage;
-  FOR_EACH_OBSERVER(Observer, observers_, PairingStageChanged(new_stage));
+  for (Observer& observer : observers_)
+    observer.PairingStageChanged(new_stage);
 }
 
 void FakeControllerPairingController::ChangeStageLater(Stage new_stage) {
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, base::Bind(&FakeControllerPairingController::ChangeStage,
                             base::Unretained(this), new_stage),
       async_duration_);
 }
 
 void FakeControllerPairingController::ExecuteDiscoveryEvent(
@@ skipping 23 matching lines @@
       FROM_HERE,
       base::Bind(&FakeControllerPairingController::ExecuteDiscoveryEvent,
                  base::Unretained(this), event_position),
       async_duration_);
 }
 
 void FakeControllerPairingController::DeviceFound(
     const std::string& device_id) {
   CHECK(current_stage_ == STAGE_DEVICES_DISCOVERY);
   discovered_devices_.insert(device_id);
-  FOR_EACH_OBSERVER(Observer, observers_, DiscoveredDevicesListChanged());
+  for (Observer& observer : observers_)
+    observer.DiscoveredDevicesListChanged();
 }
 
 void FakeControllerPairingController::DeviceLost(const std::string& device_id) {
   CHECK(current_stage_ == STAGE_DEVICES_DISCOVERY);
   discovered_devices_.erase(device_id);
-  FOR_EACH_OBSERVER(Observer, observers_, DiscoveredDevicesListChanged());
+  for (Observer& observer : observers_)
+    observer.DiscoveredDevicesListChanged();
 }
 
 void FakeControllerPairingController::PairingStageChanged(Stage new_stage) {
   Stage next_stage = STAGE_NONE;
   switch (new_stage) {
     case STAGE_DEVICES_DISCOVERY: {
       discovered_devices_.clear();
       base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
           FROM_HERE,
           base::Bind(&FakeControllerPairingController::ExecuteDiscoveryEvent,
@@ skipping 37 matching lines @@
     next_stage = STAGE_HOST_CONNECTION_LOST;
   }
   if (next_stage != STAGE_NONE)
     ChangeStageLater(next_stage);
 }
 
 void FakeControllerPairingController::DiscoveredDevicesListChanged() {
 }
 
 }  // namespace pairing_chromeos