Remove usage of GetActiveEntry [2/n]

This CL is part of a serie of CL to remove usage of the deprecated
method NavigationController::GetActiveEntry.

Bug: 273710
Change-Id: I3c2aefded05884333fd3e20830cf4abfabebbdc1
Reviewed-on: https://chromium-review.googlesource.com/1102458Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Camille Lamy <clamy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568816}

chrome/browser/chrome_main_browsertest.cc

@@ -55,7 +55,7 @@ IN_PROC_BROWSER_TEST_F(ChromeMainTest, ReuseBrowserInstanceWhenOpeningFile) {
   GURL url = net::FilePathToFileURL(test_file_path);
   content::WebContents* tab =
       browser()->tab_strip_model()->GetActiveWebContents();
-  ASSERT_EQ(url, tab->GetController().GetActiveEntry()->GetVirtualURL());
+  ASSERT_EQ(url, tab->GetVisibleURL());
 }
 
 // ChromeMainTest.SecondLaunchWithIncognitoUrl is flaky on Win and Linux.