Remove ExtensionPrefFactory's dependency on Profile.

chrome/browser/extensions/extension_toolbar_model_factory.cc

Index: chrome/browser/extensions/extension_toolbar_model_factory.cc
diff --git a/chrome/browser/extensions/extension_toolbar_model_factory.cc b/chrome/browser/extensions/extension_toolbar_model_factory.cc
index f4056a6d818656fada4152cc78076fb3fecd573f..474c6a0339df4392a3941d3f0746dbfc5a67ce57 100644
--- a/chrome/browser/extensions/extension_toolbar_model_factory.cc
+++ b/chrome/browser/extensions/extension_toolbar_model_factory.cc
@@ -35,10 +35,9 @@ ExtensionToolbarModelFactory::~ExtensionToolbarModelFactory() {}
 BrowserContextKeyedService*
     ExtensionToolbarModelFactory::BuildServiceInstanceFor(
         content::BrowserContext* context) const {
-  Profile* profile = Profile::FromBrowserContext(context);
   return new ExtensionToolbarModel(
-      profile,
-      extensions::ExtensionPrefsFactory::GetForProfile(profile));
+      Profile::FromBrowserContext(context),
+      extensions::ExtensionPrefsFactory::GetForBrowserContext(context));
 }
 
 content::BrowserContext* ExtensionToolbarModelFactory::GetBrowserContextToUse(