Refactor android_webview_shell and its tests

android_webview/tools/system_webview_shell/apk/test/resources/js-test.js

 // Copyright 2015 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.
 
 debug = function debug(msg)
 {
     console.log(msg);
 };
 
 description = function description(msg, quiet)
@@ skipping 130 matching lines @@
 function shouldBeEqualToString(a, b)
 {
     if (typeof a !== "string" || typeof b !== "string")
         debug("WARN: shouldBeEqualToString() expects string arguments");
     var unevaledString = JSON.stringify(b);
     shouldBe(a, unevaledString);
 }
 
 function shouldBeTrue(a, quiet) { shouldBe(a, "true", quiet); }
 function shouldBeFalse(a, quiet) { shouldBe(a, "false", quiet); }