Make the TestServer use an absolute document root path.

chrome/test/nacl/nacl_browsertest_util.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 "chrome/test/nacl/nacl_browsertest_util.h"
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/path_service.h"
 #include "base/values.h"
@@ skipping 226 matching lines @@
   ASSERT_TRUE(handler.test_passed()) << "Test failed.";
 }
 
 bool NaClBrowserTestBase::StartTestServer() {
   // Launch the web server.
   base::FilePath document_root;
   if (!GetDocumentRoot(&document_root))
     return false;
   test_server_.reset(new net::TestServer(net::TestServer::TYPE_HTTP,
                                          net::TestServer::kLocalhost,
-                                         document_root));
+                                         net::TestServer::GetSourceRelativePath(
+                                             document_root)));
   return test_server_->Start();
 }
 
 base::FilePath::StringType NaClBrowserTestNewlib::Variant() {
   return FILE_PATH_LITERAL("newlib");
 }
 
 base::FilePath::StringType NaClBrowserTestGLibc::Variant() {
   return FILE_PATH_LITERAL("glibc");
 }
@@ skipping 12 matching lines @@
 }
 
 base::FilePath::StringType NaClBrowserTestStatic::Variant() {
   return FILE_PATH_LITERAL("static");
 }
 
 bool NaClBrowserTestStatic::GetDocumentRoot(base::FilePath* document_root) {
   *document_root = base::FilePath(FILE_PATH_LITERAL("chrome/test/data/nacl"));
   return true;
 }