Fix a bunch of IWYU violators that don't include scoped_ptr.h

ppapi/proxy/interface_list.h

 // Copyright (c) 2012 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.
 
 #ifndef PPAPI_PROXY_INTERFACE_LIST_H_
 #define PPAPI_PROXY_INTERFACE_LIST_H_
 
 #include <map>
 #include <string>
 
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
 namespace ppapi {
 namespace proxy {
 
 class PPAPI_PROXY_EXPORT InterfaceList {
  public:
@@ skipping 79 matching lines @@
   InterfaceProxy::Factory id_to_factory_[API_ID_COUNT];
 
   DISALLOW_COPY_AND_ASSIGN(InterfaceList);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_INTERFACE_LIST_H_