Reland 125805 - Reland 124817 - A profile-keyed service for Extensions, ExtensionSystem.

chrome/browser/extensions/extension_service.h

Index: chrome/browser/extensions/extension_service.h
diff --git a/chrome/browser/extensions/extension_service.h b/chrome/browser/extensions/extension_service.h
index 15eef4ef5aa76f792d34134c5b4214ba5917e973..fb873409cbe891e3c013f8985c3f7f1930d46c68 100644
--- a/chrome/browser/extensions/extension_service.h
+++ b/chrome/browser/extensions/extension_service.h
@@ -57,6 +57,7 @@ class ExtensionGlobalError;
 class ExtensionManagementEventRouter;
 class ExtensionPreferenceEventRouter;
 class ExtensionSyncData;
+class ExtensionSystem;
 class ExtensionToolbarModel;
 class ExtensionWebNavigationEventRouter;
 class HistoryExtensionEventRouter;
@@ -701,9 +702,12 @@ class ExtensionService
 
   NaClModuleInfoList::iterator FindNaClModule(const GURL& url);
 
-  // The profile this ExtensionService is part of.
+  // The normal profile associated with this ExtensionService.
   Profile* profile_;
 
+  // The ExtensionSystem for the profile above.
+  ExtensionSystem* system_;
+
   // Preferences for the owning profile (weak reference).
   ExtensionPrefs* extension_prefs_;