This fixes bug http://code.google.com/p/chromium/issues/detail?id=3881, which...

chrome/test/ui/npapi_uitest.cpp

 // Copyright 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //    * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //    * Redistributions in binary form must reproduce the above
@@ skipping 59 matching lines @@
 TEST_F(NPAPITester, Arguments) {
   std::wstring test_case = L"arguments.html";
   GURL url = GetTestUrl(L"npapi", test_case);
   NavigateToURL(url);
   WaitForFinish("arguments", "1", url, kTestCompleteCookie, 
                 kTestCompleteSuccess, kShortWaitTimeout);
 }
 
 
 // Test invoking many plugins within a single page.
-TEST_F(NPAPITester, DISABLED_ManyPlugins) {
+TEST_F(NPAPITester, ManyPlugins) {
   std::wstring test_case = L"many_plugins.html";
   GURL url(GetTestUrl(L"npapi", test_case));
   NavigateToURL(url);
 
   WaitForFinish("arguments", "1", url, kTestCompleteCookie, 
                 kTestCompleteSuccess,  kShortWaitTimeout);
   WaitForFinish("arguments", "2", url, kTestCompleteCookie, 
                 kTestCompleteSuccess,  kShortWaitTimeout);
   WaitForFinish("arguments", "3", url, kTestCompleteCookie, 
                 kTestCompleteSuccess,  kShortWaitTimeout);
@@ skipping 105 matching lines @@
 // Tests if a plugin has a non zero window rect.
 TEST_F(NPAPIVisiblePluginTester, VerifyPluginWindowRect) {
   show_window_ = true;
   std::wstring test_case = L"verify_plugin_window_rect.html";
   GURL url = GetTestUrl(L"npapi", test_case);
   NavigateToURL(url);
   WaitForFinish("checkwindowrect", "1", url, kTestCompleteCookie, 
                 kTestCompleteSuccess, kShortWaitTimeout);
 }
 
-TEST_F(NPAPIVisiblePluginTester, DISABLED_VerifyNPObjectLifetimeTest) {
+TEST_F(NPAPIVisiblePluginTester, VerifyNPObjectLifetimeTest) {
   if (!UITest::in_process_plugins() && !UITest::in_process_renderer()) {
     show_window_ = true;
     std::wstring test_case = L"npobject_lifetime_test.html";
     GURL url = GetTestUrl(L"npapi", test_case);
     NavigateToURL(url);
     WaitForFinish("npobject_lifetime_test", "1", url,
                   kTestCompleteCookie, kTestCompleteSuccess,
                   kShortWaitTimeout);
   }
 }
@@ skipping 18 matching lines @@
 }
 
 TEST_F(NPAPIVisiblePluginTester, OpenPopupWindowWithPlugin) {
   GURL url = GetTestUrl(L"npapi",
                         L"get_javascript_open_popup_with_plugin.html");
   NavigateToURL(url);
   WaitForFinish("plugin_popup_with_plugin_target", "1", url,
                 kTestCompleteCookie, kTestCompleteSuccess,
                 kShortWaitTimeout);
 }