Remove FOR_EACH_OBSERVER macro usage in chrome/browser/supervised_user

Observer lists now support range-based for loops.

BUG=655021

Review-Url: https://chromiumcodereview.appspot.com/2438513002
Cr-Commit-Position: refs/heads/master@{#426307}
diff --git a/chrome/browser/supervised_user/supervised_user_service.cc b/chrome/browser/supervised_user/supervised_user_service.cc
index 4ac24a6..545379c 100644
--- a/chrome/browser/supervised_user/supervised_user_service.cc
+++ b/chrome/browser/supervised_user/supervised_user_service.cc
@@ -657,8 +657,8 @@
     }
 
     url_filter_context_.Clear();
-    FOR_EACH_OBSERVER(
-        SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
+    for (SupervisedUserServiceObserver& observer : observer_list_)
+      observer.OnURLFilterChanged();
 
 #if !defined(OS_ANDROID)
     if (waiting_for_sync_initialization_)
@@ -753,8 +753,8 @@
 }
 
 void SupervisedUserService::OnCustodianInfoChanged() {
-  FOR_EACH_OBSERVER(
-      SupervisedUserServiceObserver, observer_list_, OnCustodianInfoChanged());
+  for (SupervisedUserServiceObserver& observer : observer_list_)
+    observer.OnCustodianInfoChanged();
 }
 
 SupervisedUserSettingsService* SupervisedUserService::GetSettingsService() {
@@ -812,8 +812,8 @@
       SupervisedUserURLFilter::BehaviorFromInt(behavior_value);
   url_filter_context_.SetDefaultFilteringBehavior(behavior);
 
-  FOR_EACH_OBSERVER(
-      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
+  for (SupervisedUserServiceObserver& observer : observer_list_)
+    observer.OnURLFilterChanged();
 }
 
 void SupervisedUserService::OnSafeSitesSettingChanged() {
@@ -909,8 +909,8 @@
 void SupervisedUserService::UpdateBlacklist() {
   bool use_blacklist = supervised_users::IsSafeSitesBlacklistEnabled(profile_);
   url_filter_context_.SetBlacklist(use_blacklist ? &blacklist_ : nullptr);
-  FOR_EACH_OBSERVER(
-      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
+  for (SupervisedUserServiceObserver& observer : observer_list_)
+    observer.OnURLFilterChanged();
 }
 
 void SupervisedUserService::UpdateManualHosts() {
@@ -926,8 +926,8 @@
   }
   url_filter_context_.SetManualHosts(std::move(host_map));
 
-  FOR_EACH_OBSERVER(
-      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
+  for (SupervisedUserServiceObserver& observer : observer_list_)
+    observer.OnURLFilterChanged();
 }
 
 void SupervisedUserService::UpdateManualURLs() {
@@ -942,8 +942,8 @@
   }
   url_filter_context_.SetManualURLs(std::move(url_map));
 
-  FOR_EACH_OBSERVER(
-      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
+  for (SupervisedUserServiceObserver& observer : observer_list_)
+    observer.OnURLFilterChanged();
 }
 
 std::string SupervisedUserService::GetSupervisedUserName() const {
@@ -1281,6 +1281,6 @@
 #endif  // !defined(OS_ANDROID)
 
 void SupervisedUserService::OnSiteListUpdated() {
-  FOR_EACH_OBSERVER(
-      SupervisedUserServiceObserver, observer_list_, OnURLFilterChanged());
+  for (SupervisedUserServiceObserver& observer : observer_list_)
+    observer.OnURLFilterChanged();
 }