Make the TestServer use an absolute document root path.

chrome/browser/ui/pdf/pdf_browsertest.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 "base/file_util.h"
 #include "base/hash.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
@@ skipping 30 matching lines @@
                        public testing::WithParamInterface<int>,
                        public content::NotificationObserver {
  public:
   PDFBrowserTest()
       : snapshot_different_(true),
         next_dummy_search_value_(0),
         load_stop_notification_count_(0) {
     pdf_test_server_.reset(new net::TestServer(
         net::TestServer::TYPE_HTTP,
         net::TestServer::kLocalhost,
-        base::FilePath(FILE_PATH_LITERAL("pdf/test"))));
+        net::TestServer::GetSourceRelativePath(
+            base::FilePath(FILE_PATH_LITERAL("pdf/test")))));
   }
 
  protected:
   // Use our own TestServer so that we can serve files from the pdf directory.
   net::TestServer* pdf_test_server() { return pdf_test_server_.get(); }
 
   int load_stop_notification_count() const {
     return load_stop_notification_count_;
   }
 
@@ skipping 342 matching lines @@
       browser()->tab_strip_model()->GetActiveWebContents(),
       "reloadPDF();"));
   observer.Wait();
 
   ASSERT_EQ("success",
             browser()->tab_strip_model()->GetActiveWebContents()->
                 GetURL().query());
 }
 
 }  // namespace