Make invalidations work for Chrome OS Kiosk Apps.

chrome/browser/invalidation/invalidation_service.h

Index: chrome/browser/invalidation/invalidation_service.h
diff --git a/chrome/browser/invalidation/invalidation_service.h b/chrome/browser/invalidation/invalidation_service.h
index 48b7274b8bb0b2cf47bbaf0d7f33ae023b152568..e65382c5d6ca03cec60596f356a9ba153b3aa77a 100644
--- a/chrome/browser/invalidation/invalidation_service.h
+++ b/chrome/browser/invalidation/invalidation_service.h
@@ -14,6 +14,7 @@ class InvalidationHandler;
 }  // namespace syncer
 
 namespace invalidation {
+class InvalidationAuthProvider;
 class InvalidationLogger;
 
 // Interface for classes that handle invalidation registrations and send out
@@ -103,6 +104,9 @@ class InvalidationService : public BrowserContextKeyedService {
   // Return the logger used to debug invalidations
   virtual InvalidationLogger* GetInvalidationLogger() = 0;
 
+  // Returns the authentication provider.
+  virtual InvalidationAuthProvider* GetInvalidationAuthProvider() = 0;
+
  protected:
   virtual ~InvalidationService() { }
 };