Make the TestServer use an absolute document root path.

net/proxy/dhcp_proxy_script_adapter_fetcher_win_unittest.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/proxy/dhcp_proxy_script_adapter_fetcher_win.h"
 
 #include "base/perftimer.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "base/timer.h"
@@ skipping 254 matching lines @@
     return fetcher;
   }
 
   URLRequestContext* url_request_context_;
 };
 
 TEST(DhcpProxyScriptAdapterFetcher, MockDhcpRealFetch) {
   TestServer test_server(
       TestServer::TYPE_HTTP,
       net::TestServer::kLocalhost,
-      base::FilePath(
-          FILE_PATH_LITERAL("net/data/proxy_script_fetcher_unittest")));
+      net::TestServer::GetSourceRelativePath(base::FilePath(FILE_PATH_LITERAL(
+          "net/data/proxy_script_fetcher_unittest"))));
   ASSERT_TRUE(test_server.Start());
 
   GURL configured_url = test_server.GetURL("files/downloadable.pac");
 
   FetcherClient client;
   TestURLRequestContext url_request_context;
   client.fetcher_.reset(
       new MockDhcpRealFetchProxyScriptAdapterFetcher(
           &url_request_context));
   client.fetcher_->configured_url_ = configured_url.spec();
   client.RunTest();
   client.WaitForResult(OK);
   ASSERT_TRUE(client.fetcher_->DidFinish());
   EXPECT_EQ(OK, client.fetcher_->GetResult());
   EXPECT_EQ(string16(L"-downloadable.pac-\n"), client.fetcher_->GetPacScript());
   EXPECT_EQ(configured_url,
             client.fetcher_->GetPacURL());
 }
 
 }  // namespace
 
 }  // namespace net