Lazy initialization for ProcessesEventRouter.

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 25e5d09d3809fa4e1d5a88a9456d41e596d8be04..28bf880ca006fced3167e328e57f4d94d48e0e0d 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -39,7 +39,6 @@
 #include "chrome/browser/extensions/api/management/management_api.h"
 #include "chrome/browser/extensions/api/media_galleries_private/media_galleries_private_event_router.h"
 #include "chrome/browser/extensions/api/preference/preference_api.h"
-#include "chrome/browser/extensions/api/processes/processes_api.h"
 #include "chrome/browser/extensions/api/push_messaging/push_messaging_api.h"
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
 #include "chrome/browser/extensions/app_notification_manager.h"
@@ -521,7 +520,6 @@ void ExtensionService::InitEventRouters() {
   cookies_event_router_.reset(
       new extensions::ExtensionCookiesEventRouter(profile_));
   management_event_router_.reset(new ExtensionManagementEventRouter(profile_));
-  extensions::ProcessesEventRouter::GetInstance()->ObserveProfile(profile_);
   web_navigation_event_router_.reset(
       new extensions::WebNavigationEventRouter(profile_));
   font_settings_event_router_.reset(