Fix up various browser tests not to use WaitForNavigation.

chrome/browser/pdf_browsertest.cc

Index: chrome/browser/pdf_browsertest.cc
diff --git a/chrome/browser/pdf_browsertest.cc b/chrome/browser/pdf_browsertest.cc
index 1e8fabb9461f3120a3d4d1f51d70eeb8457d02e3..ca59a8d836410ad9ff989dcc9079c4ccd994a408 100644
--- a/chrome/browser/pdf_browsertest.cc
+++ b/chrome/browser/pdf_browsertest.cc
@@ -336,12 +336,16 @@ IN_PROC_BROWSER_TEST_F(PDFBrowserTest, MAYBE_OnLoadAndReload) {
   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());
 }