Make SharedMemoryDataConsumerHandle thread-safe.

content/public/child/request_peer.h

 // Copyright 2014 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 CONTENT_PUBLIC_CHILD_REQUEST_PEER_H_
 #define CONTENT_PUBLIC_CHILD_REQUEST_PEER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 34 matching lines @@
    public:
     virtual ~ReceivedData() {}
     virtual const char* payload() const = 0;
     virtual int length() const = 0;
     // The encoded_length is the length of the encoded data transferred
     // over the network, which could be different from data length (e.g. for
     // gzipped content).
     virtual int encoded_length() const = 0;
   };
 
+  // A ThreadSafeReceivedData can be deleted on ANY thread.
+  class CONTENT_EXPORT ThreadSafeReceivedData : public ReceivedData {};
+
   // Called as upload progress is made.
   // note: only for requests with upload progress enabled.
   virtual void OnUploadProgress(uint64 position, uint64 size) = 0;
 
   // Called when a redirect occurs.  The implementation may return false to
   // suppress the redirect.  The ResourceResponseInfo provides information about
   // the redirect response and the RedirectInfo includes information about the
   // request to be made if the method returns true.
   virtual bool OnReceivedRedirect(const net::RedirectInfo& redirect_info,
                                   const ResourceResponseInfo& info) = 0;
@@ skipping 28 matching lines @@
                                   const base::TimeTicks& completion_time,
                                   int64 total_transfer_size) = 0;
 
  protected:
   virtual ~RequestPeer() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_CHILD_REQUEST_PEER_H_