Do not include "wtf/Platform.h" directly

Source/web/tests/CustomEventTest.cpp

 /*
  * Copyright (C) 2013 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 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * 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 "config.h"
+
 #include "FrameTestHelpers.h"
 #include "URLTestHelpers.h"
 #include "V8Event.h"
 #include "WebFrame.h"
 #include "WebFrameImpl.h"
 #include "WebView.h"
 #include "WebViewImpl.h"
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "public/platform/Platform.h"
@@ skipping 66 matching lines @@
     customEvent.initCustomEvent("blah", false, false, WebSerializedScriptValue::serialize(v8::Boolean::New(true)));
     RefPtr<EventListener> listener = TestListener::create(frame->mainWorldScriptContext());
     frame->frame()->document()->addEventListener("blah", listener, false);
     frame->frame()->document()->dispatchEvent(event);
 
     Platform::current()->unitTestSupport()->unregisterAllMockedURLs();
     webView->close();
 }
 
 }