Add new E2E sync multi profiles tests. This should not affect any existing

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

Index: chrome/browser/sync/test/integration/bookmarks_helper.cc
diff --git a/chrome/browser/sync/test/integration/bookmarks_helper.cc b/chrome/browser/sync/test/integration/bookmarks_helper.cc
index 1e665d6cde93e3f0bbf553d85002afc50994c56e..3e2745a72f01256d38f2a035a8c92c99a2007af7 100644
--- a/chrome/browser/sync/test/integration/bookmarks_helper.cc
+++ b/chrome/browser/sync/test/integration/bookmarks_helper.cc
@@ -18,6 +18,7 @@
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/bookmarks/chrome_bookmark_client.h"
 #include "chrome/browser/bookmarks/chrome_bookmark_client_factory.h"
+#include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/favicon/favicon_service.h"
 #include "chrome/browser/favicon/favicon_service_factory.h"
 #include "chrome/browser/history/history_db_task.h"
@@ -36,6 +37,7 @@
 #include "components/bookmarks/browser/bookmark_utils.h"
 #include "components/favicon_base/favicon_util.h"
 #include "components/history/core/browser/history_types.h"
+#include "content/public/browser/notification_service.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ -150,6 +152,20 @@ int CountNodesWithTitlesMatching(BookmarkModel* model,
   return count;
 }
 
+// Returns the number of nodes of node type |node_type| in |model|.
+int CountNodes(BookmarkModel* model, BookmarkNode::Type node_type) {
+  ui::TreeNodeIterator<const BookmarkNode> iterator(model->root_node());
+  // Walk through the model tree looking for bookmark nodes of node type
+  // |node_type|.
+  int count = 0;
+  while (iterator.has_next()) {
+    const BookmarkNode* node = iterator.Next();
+    if (node->type() == node_type)
+      ++count;
+  }
+  return count;
+}
+
 // Checks if the favicon data in |bitmap_a| and |bitmap_b| are equivalent.
 // Returns true if they match.
 bool FaviconRawBitmapsMatch(const SkBitmap& bitmap_a,
@@ -654,6 +670,21 @@ void ReverseChildOrder(int profile, const BookmarkNode* parent) {
   }
 }
 
+void NotifyBookmarksSync(int profile) {
+  const syncer::ModelTypeSet types(syncer::BOOKMARKS);
+  content::NotificationService::current()->Notify(
+      chrome::NOTIFICATION_SYNC_REFRESH_LOCAL,
+      content::Source<Profile>(
+          sync_datatype_helper::test()->GetProfile(profile)),
+      content::Details<const syncer::ModelTypeSet>(&types));
+}
+
+void NotifyBookmarksSyncToAllProfiles() {
+  for (int i = 0; i < sync_datatype_helper::test()->num_clients(); ++i) {
+    NotifyBookmarksSync(i);
+  }
+}
+
 bool ModelMatchesVerifier(int profile) {
   if (!sync_datatype_helper::test()->use_verifier()) {
     LOG(ERROR) << "Illegal to call ModelMatchesVerifier() after "
@@ -771,6 +802,10 @@ const BookmarkNode* GetUniqueNodeByURL(int profile, const GURL& url) {
   return nodes[0];
 }
 
+int CountAllBookmarks(int profile) {
+  return CountNodes(GetBookmarkModel(profile), BookmarkNode::URL);
+}
+
 int CountBookmarksWithTitlesMatching(int profile, const std::string& title) {
   return CountNodesWithTitlesMatching(GetBookmarkModel(profile),
                                       BookmarkNode::URL,