Delay autofill commits to reduce client to server traffic.

chrome/browser/sync/internal_api/sync_manager.h

Index: chrome/browser/sync/internal_api/sync_manager.h
diff --git a/chrome/browser/sync/internal_api/sync_manager.h b/chrome/browser/sync/internal_api/sync_manager.h
index 321a6c69179fed830006e778b5abbf4974e6e557..cc0e462f5c07f25ce346fbec275e412c167f62bf 100644
--- a/chrome/browser/sync/internal_api/sync_manager.h
+++ b/chrome/browser/sync/internal_api/sync_manager.h
@@ -10,6 +10,7 @@
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
+#include "base/time.h"
 #include "base/threading/thread_checker.h"
 #include "chrome/browser/sync/internal_api/change_record.h"
 #include "chrome/browser/sync/internal_api/configure_reason.h"
@@ -56,6 +57,7 @@ enum PassphraseRequiredReason {
                                        // was unsuccessful.
 };
 
+
 // Contains everything needed to talk to and identify a user account.
 struct SyncCredentials {
   std::string email;
@@ -580,7 +582,16 @@ class SyncManager {
   void TriggerOnIncomingNotificationForTest(
       syncable::ModelTypeSet model_types);
 
+  static const int kDefaultNudgeDelayMilliseconds;
+  static const int kPreferencesNudgeDelayMilliseconds;
+  static const int kPiggybackNudgeDelay;
+
  private:
+  FRIEND_TEST_ALL_PREFIXES(SyncManagerTest, NudgeDelayTest);
+
+  // For unit tests.
+  base::TimeDelta GetNudgeDelayTimeDelta(const syncable::ModelType& model_type);
+
   base::ThreadChecker thread_checker_;
 
   // Internal callback of RefreshNigori.