Fixes the cache lock issue.

chrome/browser/devtools/devtools_network_transaction.h

 // Copyright 2014 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 CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_TRANSACTION_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_TRANSACTION_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 39 matching lines @@
   DevToolsNetworkTransaction(
       DevToolsNetworkController* controller,
       std::unique_ptr<net::HttpTransaction> network_transaction);
 
   ~DevToolsNetworkTransaction() override;
 
   // HttpTransaction methods:
   int Start(const net::HttpRequestInfo* request,
             const net::CompletionCallback& callback,
             const net::NetLogWithSource& net_log) override;
+  void Orphan(std::unique_ptr<HttpTransaction> trans) override;

[jkarlin, 2016/12/06 18:08:17]

Avoid abbreviating variable names, prefer http_transaction.
http_cache_transaction uses 'trans' in places, but that should get cleaned up
one day.

[shivanisha, 2016/12/06 21:53:34]

Done in all the new code.

   int RestartIgnoringLastError(
       const net::CompletionCallback& callback) override;
   int RestartWithCertificate(net::X509Certificate* client_cert,
                              net::SSLPrivateKey* client_private_key,
                              const net::CompletionCallback& callback) override;
   int RestartWithAuth(const net::AuthCredentials& credentials,
                       const net::CompletionCallback& callback) override;
   bool IsReadyToRestartForAuth() override;
 
   int Read(net::IOBuffer* buf,
@@ skipping 54 matching lines @@
 
   const net::HttpRequestInfo* request_;
 
   // True if Fail was already invoked.
   bool failed_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsNetworkTransaction);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_TRANSACTION_H_