Draft: InvalidationService

chrome/browser/sync/invalidation_frontend.h

Index: chrome/browser/sync/invalidation_frontend.h
diff --git a/chrome/browser/sync/invalidation_frontend.h b/chrome/browser/sync/invalidation_frontend.h
index 0c767704f0b12fe0be6ad988e2f41a712aab6e27..cddf6d4dcd38c9d2c617eb40deb10ba958d72d9d 100644
--- a/chrome/browser/sync/invalidation_frontend.h
+++ b/chrome/browser/sync/invalidation_frontend.h
@@ -6,9 +6,11 @@
 #define CHROME_BROWSER_SYNC_INVALIDATION_FRONTEND_H_
 
 #include "sync/notifier/invalidation_util.h"
+#include "sync/notifier/invalidator_state.h"
 
 namespace syncer {
 class InvalidationHandler;
+class AckHandle;
 }  // namespace syncer
 
 // Interface for classes that handle invalidation registrations and send out
@@ -92,6 +94,10 @@ class InvalidationFrontend {
   // the updated state.
   virtual syncer::InvalidatorState GetInvalidatorState() const = 0;
 
+  // Returns this client's unique ID.  Used to prevent this client from
+  // receiving notifications of commits it made itself.
+  virtual std::string GetInvalidatorClientId() const = 0;
+
  protected:
   virtual ~InvalidationFrontend() { }
 };