Initial implementation of ServiceWorkerCache.

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 34 matching lines @@
   CHECK_LT(s.size(), static_cast<size_t>(INT_MAX));
   data_ = const_cast<char*>(string_data_.data());
 }
 
 StringIOBuffer::~StringIOBuffer() {
   // We haven't allocated the buffer, so remove it before the base class
   // destructor tries to delete[] it.
   data_ = NULL;
 }
 
+ZeroCopyStringIOBuffer::ZeroCopyStringIOBuffer(std::string* s) : IOBuffer() {
+  string_.swap(*s);
+  CHECK_LT(s->size(), static_cast<size_t>(INT_MAX));
+  data_ = const_cast<char*>(string_.data());
+}
+
+ZeroCopyStringIOBuffer::~ZeroCopyStringIOBuffer() {
+  data_ = NULL;

[michaeln, 2014/08/14 22:59:01]

is this needed? oh i see the comment in ~StringIOBuffer applies here as well,
probably worth putting that comment here too.

[jkarlin, 2014/08/15 11:49:44]

No longer necessary after merge into StringIOBuffer as suggested by gavinp.

+}
+
 DrainableIOBuffer::DrainableIOBuffer(IOBuffer* base, int size)
     : IOBuffer(base->data()),
       base_(base),
       size_(size),
       used_(0) {
 }
 
 void DrainableIOBuffer::DidConsume(int bytes) {
   SetOffset(used_ + bytes);
 }
@@ skipping 65 matching lines @@
 
 WrappedIOBuffer::WrappedIOBuffer(const char* data)
     : IOBuffer(const_cast<char*>(data)) {
 }
 
 WrappedIOBuffer::~WrappedIOBuffer() {
   data_ = NULL;
 }
 
 }  // namespace net