[Sync] Add logic to reassociate tab nodes after restart.

chrome/android/testshell/testshell_tab.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 "chrome/android/testshell/testshell_tab.h"
 
 #include "base/android/jni_string.h"
 #include "base/logging.h"
 #include "chrome/browser/android/chrome_web_contents_delegate_android.h"
 #include "chrome/browser/net/url_fixer_upper.h"
@@ skipping 112 matching lines @@
                  jobject obj,
                  jint web_contents_ptr,
                  jint window_android_ptr) {
   TestShellTab* tab = new TestShellTab(
       env,
       obj,
       reinterpret_cast<WebContents*>(web_contents_ptr),
       reinterpret_cast<WindowAndroid*>(window_android_ptr));
   return reinterpret_cast<jint>(tab);
 }
+
+int64 TestShellTab::GetSyncId() const {
+  NOTIMPLEMENTED();
+  return 0;
+}
+
+void TestShellTab::SetSyncId(int64 sync_id) { NOTIMPLEMENTED(); }