Remove unused EnableAdviewSrcAttribute command line flag.

chrome/test/data/extensions/platform_apps/ad_view/src_not_exposed/chrometest.js

Index: chrome/test/data/extensions/platform_apps/ad_view/src_not_exposed/chrometest.js
diff --git a/chrome/test/data/extensions/platform_apps/ad_view/src_not_exposed/chrometest.js b/chrome/test/data/extensions/platform_apps/ad_view/src_not_exposed/chrometest.js
deleted file mode 100644
index f6bf10d5ce11b356f28340b12053a18819b12d61..0000000000000000000000000000000000000000
--- a/chrome/test/data/extensions/platform_apps/ad_view/src_not_exposed/chrometest.js
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright 2013 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.
-
-// This test checks 1) an <adview> works end-to-end (i.e. page is loaded) when
-// using a whitelisted ad-network, and 2) the "src" attribute is never exposed
-// to the application.
-
-function runTests() {
-  chrome.test.runTests([
-    function test() {
-      var adview = document.getElementsByTagName("adview")[0];
-      adview.addEventListener("loadcommit", function(e){
-        chrome.test.assertEq(false, adview.hasAttribute("src"));
-        chrome.test.assertEq(null, adview.getAttribute("src"));
-        chrome.test.assertEq(undefined, adview['src']);
-        chrome.test.assertEq(undefined, adview.src);
-        console.log("Properties and attributes are inactive.");
-        chrome.test.succeed();
-      });
-      adview.setAttribute('ad-network', 'admob');
-    }
-  ]);
-}
-
-window.onload = function() {
-  chrome.test.getConfig(function(config) {
-    runTests();
-  });
-}