Make TabBase non abstract

chrome/android/testshell/chrome_main_delegate_testshell_android.cc

Index: chrome/android/testshell/chrome_main_delegate_testshell_android.cc
diff --git a/chrome/android/testshell/chrome_main_delegate_testshell_android.cc b/chrome/android/testshell/chrome_main_delegate_testshell_android.cc
index 981fb48f9ad50ecbeb84f8a144e9bad13385219b..ac2b508b14a27ea80c68e6f523e34cbada9af7a5 100644
--- a/chrome/android/testshell/chrome_main_delegate_testshell_android.cc
+++ b/chrome/android/testshell/chrome_main_delegate_testshell_android.cc
@@ -6,15 +6,10 @@
 
 #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();
 }
@@ -30,10 +25,3 @@ bool ChromeMainDelegateTestShellAndroid::BasicStartupComplete(int* exit_code) {
   return ChromeMainDelegateAndroid::BasicStartupComplete(exit_code);
 }
 
-bool ChromeMainDelegateTestShellAndroid::RegisterApplicationNativeMethods(
-    JNIEnv* env) {
-  return ChromeMainDelegateAndroid::RegisterApplicationNativeMethods(env) &&
-      base::android::RegisterNativeMethods(env,
-                                           kRegistrationMethods,
-                                           arraysize(kRegistrationMethods));
-}