Remove duplicated headers from the testing/ directory

Source/testing/runner/CppVariant.cpp

 /*
  * Copyright (C) 2010 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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "CppVariant.h"
 
 #include "TestCommon.h"
-#include "public/web/WebBindings.h"
 #include <limits>
 
 using namespace blink;
 using namespace std;
 
 namespace WebTestRunner {
 
 CppVariant::CppVariant()
 {
     type = NPVariantType_Null;
@@ skipping 269 matching lines @@
 {
     BLINK_ASSERT(isObject());
     NPObject* npObject = value.objectValue;
     NPVariant r;
     bool status = WebBindings::invokeDefault(0, npObject, arguments, argumentCount, &r);
     result.set(r);
     return status;
 }
 
 }