Revert 96593 - Fix up various browser tests not to use WaitForNavigation.

chrome/browser/pdf_browsertest.cc

Index: chrome/browser/pdf_browsertest.cc
===================================================================
--- chrome/browser/pdf_browsertest.cc	(revision 96616)
+++ chrome/browser/pdf_browsertest.cc	(working copy)
@@ -336,16 +336,12 @@
   GURL url = pdf_test_server()->GetURL("files/onload_reload.html");
   ui_test_utils::NavigateToURL(browser(), url);
 
-  ui_test_utils::WindowedNavigationObserver observer(
-      content::NOTIFICATION_LOAD_STOP,
-      Source<NavigationController>(
-          &browser()->GetSelectedTabContents()->controller()));
   ASSERT_TRUE(ui_test_utils::ExecuteJavaScript(
       browser()->GetSelectedTabContents()->render_view_host(),
       std::wstring(),
       L"reloadPDF();"));
-  observer.Wait();
 
+  ASSERT_TRUE(ui_test_utils::WaitForNavigationInCurrentTab(browser()));
   ASSERT_EQ("success", browser()->GetSelectedTabContents()->GetURL().query());
 }