Make the TestServer use an absolute document root path.

chrome/browser/instant/instant_test_utils.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 CHROME_BROWSER_INSTANT_INSTANT_TEST_UTILS_H_
 #define CHROME_BROWSER_INSTANT_INSTANT_TEST_UTILS_H_
 
 #include <string>
 
 #include "base/run_loop.h"
@@ skipping 25 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(InstantTestModelObserver);
 };
 
 class InstantTestBase : public InProcessBrowserTest {
  public:
   InstantTestBase()
       : https_test_server_(
             net::TestServer::TYPE_HTTPS,
             net::BaseTestServer::SSLOptions(),
-            base::FilePath(FILE_PATH_LITERAL("chrome/test/data"))) {
+            net::TestServer::GetTestDataPath()) {
   }
 
  protected:
   void SetupInstant();
   void SetupInstantUsingTemplateURL();
 
   InstantController* instant() {
     return browser()->instant_controller()->instant();
   }
 
@@ skipping 22 matching lines @@
   bool CheckVisibilityIs(content::WebContents* contents,
                          bool expected) WARN_UNUSED_RESULT;
 
   GURL instant_url_;
 
   // HTTPS Testing server, started on demand.
   net::TestServer https_test_server_;
 };
 
 #endif  // CHROME_BROWSER_INSTANT_INSTANT_TEST_UTILS_H_