Move another bunch of extension API tests to manifest_version 2.

chrome/test/data/extensions/api_test/decode_jpeg/background.js

Index: chrome/test/data/extensions/api_test/decode_jpeg/background.js
===================================================================
--- chrome/test/data/extensions/api_test/decode_jpeg/background.js	(revision 0)
+++ chrome/test/data/extensions/api_test/decode_jpeg/background.js	(revision 0)
@@ -0,0 +1,8 @@
+// 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.
+
+bitmapArray = chrome.chromePrivate.decodeJPEG(jpegImageArray);
+chrome.test.assertEq(bitmapArray.length, referenceBitmapArray.length);
+chrome.test.assertEq(bitmapArray, referenceBitmapArray);
+chrome.test.succeed();