Remove left-over PageCache stuff

Tools/DumpRenderTree/chromium/TestRunner/src/TestRunner.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2010 Pawel Hajdan (phajdan.jr@chromium.org)
  * Copyright (C) 2012 Apple 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
@@ skipping 1583 matching lines @@
     else if (key == "WebKitJavaScriptEnabled")
         prefs->javaScriptEnabled = cppVariantToBool(value);
     else if (key == "WebKitSupportsMultipleWindows")
         prefs->supportsMultipleWindows = cppVariantToBool(value);
     else if (key == "WebKitDisplayImagesKey")
         prefs->loadsImagesAutomatically = cppVariantToBool(value);
     else if (key == "WebKitPluginsEnabled")
         prefs->pluginsEnabled = cppVariantToBool(value);
     else if (key == "WebKitJavaEnabled")
         prefs->javaEnabled = cppVariantToBool(value);
-    else if (key == "WebKitUsesPageCachePreferenceKey")
-        prefs->usesPageCache = cppVariantToBool(value);
-    else if (key == "WebKitPageCacheSupportsPluginsPreferenceKey")
-        prefs->pageCacheSupportsPlugins = cppVariantToBool(value);
     else if (key == "WebKitOfflineWebApplicationCacheEnabled")
         prefs->offlineWebApplicationCacheEnabled = cppVariantToBool(value);
     else if (key == "WebKitTabToLinksPreferenceKey")
         prefs->tabsToLinks = cppVariantToBool(value);
     else if (key == "WebKitWebGLEnabled")
         prefs->experimentalWebGLEnabled = cppVariantToBool(value);
     else if (key == "WebKitCSSRegionsEnabled")
         prefs->experimentalCSSRegionsEnabled = cppVariantToBool(value);
     else if (key == "WebKitCSSGridLayoutEnabled")
         prefs->experimentalCSSGridLayoutEnabled = cppVariantToBool(value);
@@ skipping 412 matching lines @@
     result->setNull();
 }
 
 void TestRunner::setPointerLockWillFailSynchronously(const CppArgumentList&, CppVariant* result)
 {
     m_pointerLockPlannedResult = PointerLockWillFailSync;
     result->setNull();
 }
 
 }