Make TabBase non abstract

chrome/android/testshell/chrome_main_delegate_testshell_android.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/chrome_main_delegate_testshell_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
-#include "chrome/android/testshell/testshell_tab.h"
 #include "chrome/browser/search_engines/template_url_prepopulate_data.h"
 
 static const char kDefaultCountryCode[] = "US";
 
-static base::android::RegistrationMethod kRegistrationMethods[] = {
-    { "TestShellTab", TestShellTab::RegisterTestShellTab },
-};
-
 ChromeMainDelegateAndroid* ChromeMainDelegateAndroid::Create() {
   return new ChromeMainDelegateTestShellAndroid();
 }
 
 ChromeMainDelegateTestShellAndroid::ChromeMainDelegateTestShellAndroid() {
 }
 
 ChromeMainDelegateTestShellAndroid::~ChromeMainDelegateTestShellAndroid() {
 }
 
 bool ChromeMainDelegateTestShellAndroid::BasicStartupComplete(int* exit_code) {
   TemplateURLPrepopulateData::InitCountryCode(kDefaultCountryCode);
   return ChromeMainDelegateAndroid::BasicStartupComplete(exit_code);
 }
 
-bool ChromeMainDelegateTestShellAndroid::RegisterApplicationNativeMethods(
-    JNIEnv* env) {
-  return ChromeMainDelegateAndroid::RegisterApplicationNativeMethods(env) &&
-      base::android::RegisterNativeMethods(env,
-                                           kRegistrationMethods,
-                                           arraysize(kRegistrationMethods));
-}