PlzNavigate: Make ServiceWorker work with PlzNavigate.

components/navigation_interception/intercept_navigation_throttle_unittest.cc

Index: components/navigation_interception/intercept_navigation_throttle_unittest.cc
diff --git a/components/navigation_interception/intercept_navigation_throttle_unittest.cc b/components/navigation_interception/intercept_navigation_throttle_unittest.cc
index 15e05efaf0473a80b1a2f26901181eea33793908..04d923c2d5c64c1692be3475ff4d650016abde6a 100644
--- a/components/navigation_interception/intercept_navigation_throttle_unittest.cc
+++ b/components/navigation_interception/intercept_navigation_throttle_unittest.cc
@@ -60,7 +60,7 @@ class InterceptNavigationThrottleTest
   SimulateWillStart(const GURL& url, const GURL& sanitized_url, bool is_post) {
     scoped_ptr<content::NavigationHandle> test_handle =
         content::NavigationHandle::CreateNavigationHandleForTesting(
-            url, true, web_contents());
+            url, true, main_rfh());
     test_handle->RegisterThrottleForTesting(
         scoped_ptr<NavigationThrottle>(
             new InterceptNavigationThrottle(
@@ -76,7 +76,7 @@ class InterceptNavigationThrottleTest
   NavigationThrottle::ThrottleCheckResult Simulate302() {
     scoped_ptr<content::NavigationHandle> test_handle =
         content::NavigationHandle::CreateNavigationHandleForTesting(
-            GURL(kTestUrl), true, web_contents());
+            GURL(kTestUrl), true, main_rfh());
     test_handle->RegisterThrottleForTesting(
         scoped_ptr<NavigationThrottle>(
             new InterceptNavigationThrottle(