Change some DCHECKs into CHECKs to track down a crash.

net/http/http_stream_factory_impl_job.cc

 // Copyright (c) 2012 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_stream_factory_impl_job.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 457 matching lines @@
     next_state_ = STATE_WAITING_USER_ACTION;
     base::MessageLoop::current()->PostTask(
         FROM_HERE,
         base::Bind(&HttpStreamFactoryImpl::Job::OnCertificateErrorCallback,
                    ptr_factory_.GetWeakPtr(), result, ssl_info_));
     return ERR_IO_PENDING;
   }
 
   switch (result) {
     case ERR_PROXY_AUTH_REQUESTED: {
-      DCHECK(connection_.get());
-      DCHECK(connection_->socket());
-      DCHECK(establishing_tunnel_);
+      CHECK(connection_.get());
+      CHECK(connection_->socket());
+      CHECK(establishing_tunnel_);
 
       next_state_ = STATE_WAITING_USER_ACTION;
       ProxyClientSocket* proxy_socket =
           static_cast<ProxyClientSocket*>(connection_->socket());
       base::MessageLoop::current()->PostTask(
           FROM_HERE,
           base::Bind(&Job::OnNeedsProxyAuthCallback, ptr_factory_.GetWeakPtr(),
                      *proxy_socket->GetConnectResponseInfo(),
                      proxy_socket->GetAuthController()));
       return ERR_IO_PENDING;
@@ skipping 999 matching lines @@
       (net::LOAD_MAIN_FRAME | net::LOAD_SUB_FRAME | net::LOAD_PREFETCH |
        net::LOAD_IS_DOWNLOAD)) {
     // Avoid pipelining resources that may be streamed for a long time.
     return false;
   }
   return stream_factory_->http_pipelined_host_pool_.IsKeyEligibleForPipelining(
       *http_pipelining_key_.get());
 }
 
 }  // namespace net