MTP Streaming: Readahead Buffer

net/base/io_buffer.cc

 // Copyright (c) 2011 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.
 
 #include "net/base/io_buffer.h"
 
 #include "base/logging.h"
 
 namespace net {
 
@@ skipping 61 matching lines @@
   return used_;
 }
 
 void DrainableIOBuffer::SetOffset(int bytes) {
   DCHECK_GE(bytes, 0);
   DCHECK_LE(bytes, size_);
   used_ = bytes;
   data_ = base_->data() + used_;
 }
 
+void DrainableIOBuffer::SetSize(int size) {
+  DCHECK_GE(size, 0);
+  DCHECK_LE(used_, size);
+  size_ = size;
+}
+
 DrainableIOBuffer::~DrainableIOBuffer() {
   // The buffer is owned by the |base_| instance.
   data_ = NULL;
 }
 
 GrowableIOBuffer::GrowableIOBuffer()
     : IOBuffer(),
       capacity_(0),
       offset_(0) {
 }
@@ skipping 38 matching lines @@
 
 WrappedIOBuffer::WrappedIOBuffer(const char* data)
     : IOBuffer(const_cast<char*>(data)) {
 }
 
 WrappedIOBuffer::~WrappedIOBuffer() {
   data_ = NULL;
 }
 
 }  // namespace net