Fix ManifestBrowserTest.Navigation to not time out --site-per-process.

content/browser/manifest/manifest_browsertest.cc

 // Copyright 2014 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/command_line.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/manifest.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test.h"
@@ skipping 266 matching lines @@
   navigation_observer.Wait();
 
   GetManifestAndWait();
   EXPECT_TRUE(manifest().IsEmpty());
   EXPECT_EQ(6u, console_error_count());
 }
 
 // If a page has a manifest and the page is navigated to a page without a
 // manifest, the page's manifest should be updated.
 IN_PROC_BROWSER_TEST_F(ManifestBrowserTest, Navigation) {
+  ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
   {
-    GURL test_url = GetTestUrl("manifest", "dummy-manifest.html");
+    GURL test_url =
+        embedded_test_server()->GetURL("/manifest/dummy-manifest.html");
 
     TestNavigationObserver navigation_observer(shell()->web_contents(), 1);
     shell()->LoadURL(test_url);
     navigation_observer.Wait();
 
     GetManifestAndWait();
     EXPECT_FALSE(manifest().IsEmpty());
     EXPECT_EQ(0u, console_error_count());
   }
 
   {
-    GURL test_url = GetTestUrl("manifest", "no-manifest.html");
+    GURL test_url =
+        embedded_test_server()->GetURL("/manifest/no-manifest.html");
 
     TestNavigationObserver navigation_observer(shell()->web_contents(), 1);
     shell()->LoadURL(test_url);
     navigation_observer.Wait();
 
     GetManifestAndWait();
     EXPECT_TRUE(manifest().IsEmpty());
     EXPECT_EQ(0u, console_error_count());
   }
 }
 
 } // namespace content