Move glue code of blob channel to blimp_client_context_impl.

blimp/net/blob_channel/helium_blob_receiver_delegate.h

 // Copyright 2016 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_BLOB_CHANNEL_HELIUM_BLOB_RECEIVER_DELEGATE_H_
 #define BLIMP_NET_BLOB_CHANNEL_HELIUM_BLOB_RECEIVER_DELEGATE_H_
 
 #include <memory>
 
 #include "blimp/net/blimp_message_processor.h"
@@ skipping 10 matching lines @@
 class BLIMP_NET_EXPORT HeliumBlobReceiverDelegate
     : public BlobChannelReceiver::Delegate,
       public BlimpMessageProcessor {
  public:
   HeliumBlobReceiverDelegate();
   ~HeliumBlobReceiverDelegate() override;
 
   // Sets the Receiver object which will take incoming blobs.
   void SetReceiver(BlobChannelReceiver* receiver) override;
 
- private:
   // BlimpMessageProcessor implementation.
   void ProcessMessage(std::unique_ptr<BlimpMessage> message,
                       const net::CompletionCallback& callback) override;
 
+ private:
   BlobChannelReceiver* receiver_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(HeliumBlobReceiverDelegate);
 };
 
 }  // namespace blimp
 
 #endif  // BLIMP_NET_BLOB_CHANNEL_HELIUM_BLOB_RECEIVER_DELEGATE_H_