Remove EPM::all_hosts_

chrome/browser/automation/automation_provider_observers.cc

Index: chrome/browser/automation/automation_provider_observers.cc
diff --git a/chrome/browser/automation/automation_provider_observers.cc b/chrome/browser/automation/automation_provider_observers.cc
index 2fd2b9dcf010c0e4feec124125041d79a1dd46b1..57f3dcca34a363d40c60e2b846b0e59a0b320c2a 100644
--- a/chrome/browser/automation/automation_provider_observers.cc
+++ b/chrome/browser/automation/automation_provider_observers.cc
@@ -507,8 +507,9 @@ void TabCountChangeObserver::CheckTabCount() {
 }
 
 bool DidExtensionHostsStopLoading(ExtensionProcessManager* manager) {
-  for (ExtensionProcessManager::const_iterator iter = manager->begin();
-       iter != manager->end(); ++iter) {
+  for (ExtensionProcessManager::const_iterator iter =
+           manager->background_hosts().begin();
+       iter != manager->background_hosts().end(); ++iter) {
     if (!(*iter)->did_stop_loading())
       return false;
   }