[SPDY] Replace SpdyIOBuffer with new SpdyBuffer class

net/spdy/spdy_write_queue.h

 // Copyright (c) 2013 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 NET_SPDY_SPDY_WRITE_QUEUE_H_
 #define NET_SPDY_SPDY_WRITE_QUEUE_H_
 
 #include <deque>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_export.h"
 #include "net/base/request_priority.h"
 #include "net/spdy/spdy_protocol.h"
 
 namespace net {
 
-class SpdyFrameProducer;
+class SpdyBuffer;
+class SpdyBufferProducer;
 class SpdyStream;
 
-// A queue of SpdyFrameProducers to produce frames to write. Ordered
+// A queue of SpdyBufferProducers to produce frames to write. Ordered
 // by priority, and then FIFO.
 class NET_EXPORT_PRIVATE SpdyWriteQueue {
  public:
   SpdyWriteQueue();
   ~SpdyWriteQueue();
 
   // Enqueues the given frame producer of the given type at the given
   // priority associated with the given stream, which may be NULL if
   // the frame producer is not associated with a stream. If |stream|
   // is non-NULL, its priority must be equal to |priority|.
   void Enqueue(RequestPriority priority,
                SpdyFrameType frame_type,
-               scoped_ptr<SpdyFrameProducer> frame_producer,
+               scoped_ptr<SpdyBufferProducer> frame_producer,
                const scoped_refptr<SpdyStream>& stream);
 
   // Dequeues the frame producer with the highest priority that was
   // enqueued the earliest and its associated stream. Returns true and
   // fills in |frame_type|, |frame_producer|, and |stream| if
   // successful -- otherwise, just returns false.
   bool Dequeue(SpdyFrameType* frame_type,
-               scoped_ptr<SpdyFrameProducer>* frame_producer,
+               scoped_ptr<SpdyBufferProducer>* frame_producer,
                scoped_refptr<SpdyStream>* stream);
 
   // Removes all pending writes for the given stream, which must be
   // non-NULL.
   void RemovePendingWritesForStream(const scoped_refptr<SpdyStream>& stream);
 
   // Removes all pending writes.
   void Clear();
 
  private:
   // A struct holding a frame producer and its associated stream.
   struct PendingWrite {
     SpdyFrameType frame_type;
     // This has to be a raw pointer since we store this in an STL
     // container.
-    SpdyFrameProducer* frame_producer;
+    SpdyBufferProducer* frame_producer;
     scoped_refptr<SpdyStream> stream;
 
     PendingWrite();
     PendingWrite(SpdyFrameType frame_type,
-                 SpdyFrameProducer* frame_producer,
+                 SpdyBufferProducer* frame_producer,
                  const scoped_refptr<SpdyStream>& stream);
     ~PendingWrite();
   };
 
   // The actual write queue, binned by priority.
   std::deque<PendingWrite> queue_[NUM_PRIORITIES];
 
   DISALLOW_COPY_AND_ASSIGN(SpdyWriteQueue);
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_WRITE_QUEUE_H_