Sprinkle some defensiveness into the UI tests so that they don't explode if t...

chrome/browser/tab_contents/view_source_uitest.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/test/automation/browser_proxy.h"
 #include "chrome/test/automation/tab_proxy.h"
 #include "chrome/test/ui/ui_test.h"
 #include "net/url_request/url_request_unittest.h"
 
@@ skipping 28 matching lines @@
   scoped_refptr<HTTPTestServer> server =
       HTTPTestServer::CreateServer(kDocRoot, NULL);
   ASSERT_TRUE(NULL != server.get());
   std::string cookie = "viewsource_cookie";
   std::string cookie_data = "foo";
 
   // First we navigate to our view-source test page
   GURL url = server->TestServerPageW(test_html_);
   url = GURL("view-source:" + url.spec());
   scoped_refptr<TabProxy> tab(GetActiveTab());
+  ASSERT_TRUE(tab.get());
   tab->NavigateToURL(url);
   PlatformThread::Sleep(sleep_timeout_ms());
 
   // Try to retrieve the cookie that the page sets
   // It should not be there (because we are in view-source mode
   std::string cookie_found;
   tab->GetCookieByName(url, cookie, &cookie_found);
   EXPECT_NE(cookie_data, cookie_found);
 }
 
@@ skipping 41 matching lines @@
 
   // First we navigate to google.html
   GURL url = server->TestServerPageW(test_html_);
   GURL url_viewsource = GURL("view-source:" + url.spec());
   NavigateToURL(url_viewsource);
 
   EXPECT_FALSE(IsPageMenuCommandEnabled(IDC_VIEW_SOURCE));
 }
 
 }  // namespace