[Sync] Make P2PNotifier emit a notification only if some enabled types changed

chrome/browser/sync/test/integration/two_client_bookmarks_sync_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/rand_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/profile_sync_service_harness.h"
 #include "chrome/browser/sync/test/integration/bookmarks_helper.h"
 #include "chrome/browser/sync/test/integration/passwords_helper.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
@@ skipping 1554 matching lines @@
 IN_PROC_BROWSER_TEST_F(TwoClientBookmarksSyncTest, MC_DeleteBookmark) {
   ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
   ASSERT_TRUE(GetClient(1)->DisableSyncForDatatype(syncer::BOOKMARKS));
 
   const GURL bar_url("http://example.com/bar");
   const GURL other_url("http://example.com/other");
 
   ASSERT_TRUE(AddURL(0, GetBookmarkBarNode(0), 0, L"bar", bar_url) != NULL);
   ASSERT_TRUE(AddURL(0, GetOtherNode(0), 0, L"other", other_url) != NULL);
 
-  ASSERT_TRUE(AwaitQuiescence());
+  ASSERT_TRUE(GetClient(0)->AwaitFullSyncCompletion("Added a bookmark."));
 
   ASSERT_TRUE(HasNodeWithURL(0, bar_url));
   ASSERT_TRUE(HasNodeWithURL(0, other_url));
   ASSERT_FALSE(HasNodeWithURL(1, bar_url));
   ASSERT_FALSE(HasNodeWithURL(1, other_url));
 
   Remove(0, GetBookmarkBarNode(0), 0);
-  ASSERT_TRUE(AwaitQuiescence());
+  ASSERT_TRUE(GetClient(0)->AwaitFullSyncCompletion("Removed a bookmark."));
 
   ASSERT_FALSE(HasNodeWithURL(0, bar_url));
   ASSERT_TRUE(HasNodeWithURL(0, other_url));
 
   ASSERT_TRUE(GetClient(1)->EnableSyncForDatatype(syncer::BOOKMARKS));
   ASSERT_TRUE(AwaitQuiescence());
 
   ASSERT_FALSE(HasNodeWithURL(0, bar_url));
   ASSERT_TRUE(HasNodeWithURL(0, other_url));
   ASSERT_FALSE(HasNodeWithURL(1, bar_url));
@@ skipping 340 matching lines @@
 
   // Now add a bookmark within the Synced Bookmarks folder and ensure it syncs
   // over.
   const BookmarkNode* synced_bookmarks = GetSyncedBookmarksNode(0);
   ASSERT_TRUE(synced_bookmarks);
   ASSERT_TRUE(AddURL(0, synced_bookmarks, 0, L"Google2",
                      GURL("http://www.google2.com")));
   ASSERT_TRUE(GetClient(0)->AwaitMutualSyncCycleCompletion(GetClient(1)));
   ASSERT_TRUE(AllModelsMatch());
 }