Sync performance tests: take timings with autofill keys in addition to profiles.

chrome/test/live_sync/autofill_helper.h

Index: chrome/test/live_sync/autofill_helper.h
diff --git a/chrome/test/live_sync/autofill_helper.h b/chrome/test/live_sync/autofill_helper.h
index 0ad8f7ae0d26d38d64938c377a2833a86289fdd1..fd2bf60f84a865d3b62497a0b0af4b6cc09843fe 100644
--- a/chrome/test/live_sync/autofill_helper.h
+++ b/chrome/test/live_sync/autofill_helper.h
@@ -78,6 +78,9 @@ const std::vector<AutofillProfile*>& GetAllProfiles(
 // |profile|.
 int GetProfileCount(int profile);
 
+// Returns the number of autofill keys contained by sync profile |profile|.
+int GetKeyCount(int profile);
+
 // Compares the Autofill profiles in the PersonalDataManagers of sync profiles
 // |profile_a| and |profile_b|. Returns true if they match.
 bool ProfilesMatch(int profile_a, int profile_b) WARN_UNUSED_RESULT;