Move extensions-related files to using //components/keyed_service.

extensions/browser/extension_registry_factory.h

Index: extensions/browser/extension_registry_factory.h
diff --git a/extensions/browser/extension_registry_factory.h b/extensions/browser/extension_registry_factory.h
index 5b06c4f98674c1879f221e12c25dc7e53a00743e..591a894fb483e858007086e704edebf07423a201 100644
--- a/extensions/browser/extension_registry_factory.h
+++ b/extensions/browser/extension_registry_factory.h
@@ -7,7 +7,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
-#include "components/browser_context_keyed_service/browser_context_keyed_service_factory.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
 
 namespace extensions {
 
@@ -29,7 +29,7 @@ class ExtensionRegistryFactory : public BrowserContextKeyedServiceFactory {
   virtual ~ExtensionRegistryFactory();
 
   // BrowserContextKeyedServiceFactory implementation:
-  virtual BrowserContextKeyedService* BuildServiceInstanceFor(
+  virtual KeyedService* BuildServiceInstanceFor(
       content::BrowserContext* context) const OVERRIDE;
   virtual content::BrowserContext* GetBrowserContextToUse(
       content::BrowserContext* context) const OVERRIDE;