Fix IWYU violators that don't include scoped_ptr.h in Windows build.

components/dom_distiller/core/page_features.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/dom_distiller/core/page_features.h"
 
 #include <stddef.h>
 
 #include <string>
 
 #include "base/json/json_reader.h"
+#include "base/memory/scoped_ptr.h"
 #include "third_party/re2/src/re2/re2.h"
 #include "url/gurl.h"
 
 namespace dom_distiller {
 /* This code needs to derive features in the same way and order in which they
  * are derived when training the model. Parts of that code are reproduced in the
  * comments below.
  */
 
 namespace {
@@ skipping 218 matching lines @@
   features.push_back(mozScore);
   // 'mozScoreAllSqrt'
   features.push_back(mozScoreAllSqrt);
   // 'mozScoreAllLinear'
   features.push_back(mozScoreAllLinear);
 
   return features;
 }
 
 }  // namespace dom_distiller