Qualify RuntimeEnabledFeatures.h and remove unnecessary include dir.

Source/web/WebRuntimeFeatures.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 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 "config.h"
 #include "public/web/WebRuntimeFeatures.h"
 
-#include "RuntimeEnabledFeatures.h"
+#include "platform/RuntimeEnabledFeatures.h"
 #include "web/WebMediaPlayerClientImpl.h"
 
 using namespace WebCore;
 
 namespace blink {
 
 void WebRuntimeFeatures::enableExperimentalFeatures(bool enable)
 {
     RuntimeEnabledFeatures::setExperimentalFeaturesEnabled(enable);
 }
@@ skipping 239 matching lines @@
 {
     RuntimeEnabledFeatures::setLayerSquashingEnabled(enable);
 }
 
 void WebRuntimeFeatures::enableShowModalDialog(bool enable)
 {
     RuntimeEnabledFeatures::setShowModalDialogEnabled(enable);
 }
 
 } // namespace blink