Remove usage of FOR_EACH_OBSERVER macro in ui/app_list

ui/app_list/search_box_model.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 "ui/app_list/search_box_model.h"
 
 #include <utility>
 
 #include "base/metrics/histogram.h"
 #include "ui/app_list/search_box_model_observer.h"
@@ skipping 18 matching lines @@
 
 SearchBoxModel::SearchBoxModel() {
 }
 
 SearchBoxModel::~SearchBoxModel() {
 }
 
 void SearchBoxModel::SetSpeechRecognitionButton(
     std::unique_ptr<SearchBoxModel::SpeechButtonProperty> speech_button) {
   speech_button_ = std::move(speech_button);
-  FOR_EACH_OBSERVER(SearchBoxModelObserver,
-                    observers_,
-                    SpeechRecognitionButtonPropChanged());
+  for (auto& observer : observers_)
+    observer.SpeechRecognitionButtonPropChanged();
 }
 
 void SearchBoxModel::SetHintText(const base::string16& hint_text) {
   if (hint_text_ == hint_text)
     return;
 
   hint_text_ = hint_text;
-  FOR_EACH_OBSERVER(SearchBoxModelObserver, observers_, HintTextChanged());
+  for (auto& observer : observers_)
+    observer.HintTextChanged();
 }
 
 void SearchBoxModel::SetAccessibleName(const base::string16& accessible_name) {
   if (accessible_name_ == accessible_name)
     return;
 
   accessible_name_ = accessible_name;
-  FOR_EACH_OBSERVER(SearchBoxModelObserver, observers_, HintTextChanged());
+  for (auto& observer : observers_)
+    observer.HintTextChanged();
 }
 
 void SearchBoxModel::SetSelectionModel(const gfx::SelectionModel& sel) {
   if (selection_model_ == sel)
     return;
 
   selection_model_ = sel;
-  FOR_EACH_OBSERVER(SearchBoxModelObserver,
-                    observers_,
-                    SelectionModelChanged());
+  for (auto& observer : observers_)
+    observer.SelectionModelChanged();
 }
 
 void SearchBoxModel::SetText(const base::string16& text) {
   if (text_ == text)
     return;
 
   // Log that a new search has been commenced whenever the text box text
   // transitions from empty to non-empty.
   if (text_.empty() && !text.empty()) {
     UMA_HISTOGRAM_ENUMERATION("Apps.AppListSearchCommenced", 1, 2);
   }
   text_ = text;
-  FOR_EACH_OBSERVER(SearchBoxModelObserver, observers_, TextChanged());
+  for (auto& observer : observers_)
+    observer.TextChanged();
 }
 
 void SearchBoxModel::AddObserver(SearchBoxModelObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void SearchBoxModel::RemoveObserver(SearchBoxModelObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 }  // namespace app_list