Add a virtual test suite for exposed "stable" features

Source/testing/runner/TestInterfaces.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 41 matching lines @@
 TestInterfaces::TestInterfaces()
     : m_accessibilityController(new AccessibilityController())
     , m_eventSender(new EventSender(this))
     , m_gamepadController(new GamepadController())
     , m_textInputController(new TextInputController())
     , m_testRunner(new TestRunner(this))
     , m_delegate(0)
 {
     WebKit::setLayoutTestMode(true);
 
-    WebRuntimeFeatures::enableStableFeatures(true);
-    WebRuntimeFeatures::enableExperimentalFeatures(true);
-    WebRuntimeFeatures::enableTestOnlyFeatures(true);
-
     // NOTE: please don't put feature specific enable flags here,
     // instead add them to RuntimeEnabledFeatures.in
 
     resetAll();
 }
 
 TestInterfaces::~TestInterfaces()
 {
     m_accessibilityController->setWebView(0);
     m_eventSender->setWebView(0);
@@ skipping 126 matching lines @@
         m_themeEngine.reset(new WebTestThemeEngineWin());
     return m_themeEngine.get();
 #elif defined(__APPLE__)
     if (!m_themeEngine.get())
         m_themeEngine.reset(new WebTestThemeEngineMac());
     return m_themeEngine.get();
 #endif
 }
 
 }