Remove duplicated headers from the testing/ directory

Source/testing/runner/CppBoundClass.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2009 Pawel Hajdan (phajdan.jr@chromium.org)
  *
  * 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.
@@ skipping 27 matching lines @@
 // - CppBoundClass has then overridden invoke() to look up the function
 //   name in its internal map of methods, and then calls the appropriate
 //   method.
 
 #include "CppBoundClass.h"
 
 #include "TestCommon.h"
 #include "public/platform/WebString.h"
 #include "public/web/WebBindings.h"
 #include "public/web/WebFrame.h"
-#include <memory>
 
 using namespace blink;
 using namespace std;
 
 namespace WebTestRunner {
 
 namespace {
 
 class CppVariantPropertyCallback : public CppBoundClass::PropertyCallback {
 public:
@@ skipping 291 matching lines @@
 void CppBoundClass::bindToJavascript(WebFrame* frame, const WebString& classname)
 {
     // BindToWindowObject will take its own reference to the NPObject, and clean
     // up after itself. It will also (indirectly) register the object with V8,
     // so we must remember this so we can unregister it when we're destroyed.
     frame->bindToWindowObject(classname, NPVARIANT_TO_OBJECT(*getAsCppVariant()), 0);
     m_boundToFrame = true;
 }
 
 }