Check for warnings when loading extensions in browser tests.

chrome/test/data/extensions/api_test/stubs/background.html

Index: chrome/test/data/extensions/api_test/stubs/background.html
diff --git a/chrome/test/data/extensions/api_test/stubs/background.html b/chrome/test/data/extensions/api_test/stubs/background.html
deleted file mode 100644
index f1d207df6718908da6fabe0a61e077b7136ffa65..0000000000000000000000000000000000000000
--- a/chrome/test/data/extensions/api_test/stubs/background.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<script>
-// Copyright (c) 2012 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.
-
-chrome.extension.onRequest.addListener(function(msg, sender, responseFunc) {
-  if (msg == "getApi") {
-    responseFunc(chrome.test.getApiDefinitions());
-  } else if (msg == "pass") {
-    chrome.test.notifyPass();
-  } else if (msg.substr(0, 3) == "log") {
-    chrome.test.log(msg);
-  } else {
-    chrome.test.notifyFail("failed");
-  }
-});
-
-// On first install, send a success message so the test can continue.
-chrome.test.notifyPass();
-</script>