[Sync] Add support for identifying tabbed activites

components/sync/protocol/proto_enum_conversions.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 "components/sync/protocol/proto_enum_conversions.h"
 
 #include "base/logging.h"
 
 namespace syncer {
 
@@ skipping 17 matching lines @@
     ENUM_CASE(sync_pb::AppListSpecifics, TYPE_FOLDER);
     ENUM_CASE(sync_pb::AppListSpecifics, TYPE_URL);
   }
   NOTREACHED();
   return "";
 }
 
 const char* ProtoEnumToString(
     sync_pb::SessionWindow::BrowserType browser_type) {
   ASSERT_ENUM_BOUNDS(sync_pb::SessionWindow, BrowserType, TYPE_TABBED,
-                     TYPE_POPUP);
+                     TYPE_CUSTOM_TAB);
   switch (browser_type) {
     ENUM_CASE(sync_pb::SessionWindow, TYPE_TABBED);
     ENUM_CASE(sync_pb::SessionWindow, TYPE_POPUP);
+    ENUM_CASE(sync_pb::SessionWindow, TYPE_CUSTOM_TAB);
   }
   NOTREACHED();
   return "";
 }
 
 const char* ProtoEnumToString(
     sync_pb::SyncEnums::PageTransition page_transition) {
   ASSERT_ENUM_BOUNDS(sync_pb::SyncEnums, PageTransition, LINK,
                      KEYWORD_GENERATED);
   switch (page_transition) {
@@ skipping 288 matching lines @@
     ENUM_CASE(sync_pb::ReadingListSpecifics, READ);
   }
   NOTREACHED();
   return "";
 }
 
 #undef ASSERT_ENUM_BOUNDS
 #undef ENUM_CASE
 
 }  // namespace syncer