Revert of Disable WebNavigationApiTest.OpenTab on Windows.

chrome/browser/extensions/api/web_navigation/web_navigation_apitest.cc

Index: chrome/browser/extensions/api/web_navigation/web_navigation_apitest.cc
diff --git a/chrome/browser/extensions/api/web_navigation/web_navigation_apitest.cc b/chrome/browser/extensions/api/web_navigation/web_navigation_apitest.cc
index 07f9e80514fbf3d5b3b76c80f5ed2040919741ed..7caa659c72e715c64a251f946974ba75b4dc5b1d 100644
--- a/chrome/browser/extensions/api/web_navigation/web_navigation_apitest.cc
+++ b/chrome/browser/extensions/api/web_navigation/web_navigation_apitest.cc
@@ -380,13 +380,7 @@
   ASSERT_TRUE(RunExtensionTest("webnavigation/srcdoc")) << message_;
 }
 
-// Crashes on Windows. http://crbug.com/402943
-#if defined(OS_WIN)
-#define MAYBE_OpenTab DISABLED_OpenTab
-#else
-#define MAYBE_OpenTab OpenTab
-#endif
-IN_PROC_BROWSER_TEST_F(WebNavigationApiTest, MAYBE_OpenTab) {
+IN_PROC_BROWSER_TEST_F(WebNavigationApiTest, OpenTab) {
   ASSERT_TRUE(StartEmbeddedTestServer());
   ASSERT_TRUE(RunExtensionTest("webnavigation/openTab")) << message_;
 }