Change URLRequest to use a ref-counted buffer for actual IO....

net/http/http_cache_unittest.cc

 // Copyright (c) 2006-2008 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/http/http_cache.h"
 
 #include "base/hash_tables.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "net/base/net_errors.h"
@@ skipping 658 matching lines @@
   MockHttpRequest request(kSimpleGET_Transaction);
   TestCompletionCallback callback;
 
   scoped_ptr<net::HttpTransaction> trans(
       cache.http_cache()->CreateTransaction());
   int rv = trans->Start(&request, &callback);
   if (rv == net::ERR_IO_PENDING)
     rv = callback.WaitForResult();
   ASSERT_EQ(net::OK, rv);
 
-  char buf[256];
-  rv = trans->Read(buf, sizeof(buf), &callback);
+  scoped_refptr<net::IOBuffer> buf = new net::IOBuffer(256);
+  rv = trans->Read(buf, 256, &callback);
   EXPECT_EQ(net::ERR_IO_PENDING, rv);
 
   // Test that destroying the transaction while it is reading from the cache
   // works properly.
   trans.reset();
 
   // Make sure we pump any pending events, which should include a call to
   // HttpCache::Transaction::OnCacheReadCompleted.
   MessageLoop::current()->RunAllPending();
 }
@@ skipping 390 matching lines @@
 
   scoped_ptr<net::HttpTransaction> trans(
       cache.http_cache()->CreateTransaction());
   ASSERT_TRUE(trans.get());
 
   int rv = trans->Start(&request, &callback);
   if (rv == net::ERR_IO_PENDING)
     rv = callback.WaitForResult();
   ASSERT_EQ(net::ERR_CACHE_MISS, rv);
 }