Make the TestServer use an absolute document root path.

net/test/local_test_server.h

 // Copyright 2013 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 NET_TEST_LOCAL_TEST_SERVER_H_
 #define NET_TEST_LOCAL_TEST_SERVER_H_
 
 #include <string>
 
 #include "base/file_util.h"
 #include "base/process.h"
 #include "net/test/base_test_server.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_handle.h"
 #endif
 
 class CommandLine;
 
 namespace net {
 
 // The LocalTestServer runs an external Python-based test server in the
 // same machine in which the LocalTestServer runs.
 class LocalTestServer : public BaseTestServer {
  public:
   // Initialize a TestServer listening on a specific host (IP or hostname).
-  // |document_root| must be a relative path under the root tree.
+  // |document_root| must be an absolute path.
   LocalTestServer(Type type,
                   const std::string& host,
                   const base::FilePath& document_root);
 
   // Initialize a TestServer with a specific set of SSLOptions.
-  // |document_root| must be a relative path under the root tree.
+  // |document_root| must be an absolute path.
   LocalTestServer(Type type,
                   const SSLOptions& ssl_options,
                   const base::FilePath& document_root);
 
   virtual ~LocalTestServer();
 
   // Start the test server and block until it's ready. Returns true on success.
   bool Start() WARN_UNUSED_RESULT;
 
   // Start the test server without blocking. Use this if you need multiple test
@@ skipping 64 matching lines @@
   int child_fd_;
   file_util::ScopedFD child_fd_closer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(LocalTestServer);
 };
 
 }  // namespace net
 
 #endif  // NET_TEST_LOCAL_TEST_SERVER_H_