-Wuninitialized fixes

chrome/browser/extensions/extension_browsertests_misc.cc

 // Copyright (c) 2011 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 "base/file_util.h"
 #include "base/ref_counted.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/extensions/autoupdate_interceptor.h"
 #include "chrome/browser/extensions/extension_apitest.h"
@@ skipping 624 matching lines @@
   if (newtab_result)
     *newtab_result = newtab;
 }
 
 // Tests that an extension page can call window.open to an extension URL and
 // the new window has extension privileges.
 IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, WindowOpenExtension) {
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("uitest").AppendASCII("window_open")));
 
-  TabContents* newtab;
+  TabContents* newtab = NULL;  // clang, needs investigation
   ASSERT_NO_FATAL_FAILURE(WindowOpenHelper(
       browser(),
       GURL(std::string("chrome-extension://") + last_loaded_extension_id_ +
            "/test.html"),
       "newtab.html", &newtab));
 
   bool result = false;
   ASSERT_TRUE(ui_test_utils::ExecuteJavaScriptAndExtractBool(
       newtab->render_view_host(), L"", L"testExtensionApi()", &result));
   EXPECT_TRUE(result);
@@ skipping 198 matching lines @@
           L"        window.chrome.app.isInstalled = false;"
           L"        return 'BAD: Should have thrown by now...';"
           L"      } catch (e) {"
           L"        return 'GOOD: Saw expected error.';"
           L"      }"
           L"    }()"
           L");",
           &result));
   EXPECT_EQ("GOOD: Saw expected error.", result);
 }