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

blimp/net/blimp_message_multiplexer.h

 // 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.
 
 #ifndef BLIMP_NET_BLIMP_MESSAGE_MULTIPLEXER_H_
 #define BLIMP_NET_BLIMP_MESSAGE_MULTIPLEXER_H_
 
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "blimp/common/proto/blimp_message.pb.h"
 #include "blimp/net/blimp_net_export.h"
 
 namespace blimp {
 
 class BlimpConnection;
 class BlimpMessageProcessor;
 
 // Creates MessageProcessors that receive outgoing messages and put them
@@ skipping 15 matching lines @@
 
  private:
   base::WeakPtrFactory<BlimpMessageProcessor> output_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpMessageMultiplexer);
 };
 
 }  // namespace blimp
 
 #endif  // BLIMP_NET_BLIMP_MESSAGE_MULTIPLEXER_H_