Backed out 5 changesets (bug 1269501) for failing the added test_subprocess.js on Windows (didn't fold it into the last backout). r=backout

Backed out changeset 3e1d7c5d1a58 (bug 1269501)
Backed out changeset 167e407cb1fc (bug 1269501)
Backed out changeset 6438b11898cf (bug 1269501)
Backed out changeset 1cbbf940ec35 (bug 1269501)
Backed out changeset ed35c5f4d756 (bug 1269501)

toolkit/modules/subprocess/subprocess_win.jsm

@@ -1,138 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-"use strict";
-
-/* eslint-disable mozilla/balanced-listeners */
-
-/* exported SubprocessImpl */
-
-/* globals BaseProcess */
-
-var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
-
-var EXPORTED_SYMBOLS = ["SubprocessImpl"];
-
-Cu.import("resource://gre/modules/ctypes.jsm");
-Cu.import("resource://gre/modules/osfile.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/Task.jsm");
-Cu.import("resource://gre/modules/subprocess/subprocess_common.jsm");
-
-Services.scriptloader.loadSubScript("resource://gre/modules/subprocess/subprocess_shared.js", this);
-Services.scriptloader.loadSubScript("resource://gre/modules/subprocess/subprocess_shared_win.js", this);
-
-class Process extends BaseProcess {
-  static get WORKER_URL() {
-    return "resource://gre/modules/subprocess/subprocess_worker_win.js";
-  }
-}
-
-var SubprocessWin = {
-  Process,
-
-  call(options) {
-    return Process.create(options);
-  },
-
-
-  * getEnvironment() {
-    let env = libc.GetEnvironmentStringsW();
-    try {
-      for (let p = env, q = env; ; p = p.increment()) {
-        if (p.contents == "\0") {
-          if (String(p) == String(q)) {
-            break;
-          }
-
-          let str = q.readString();
-          q = p.increment();
-
-          let idx = str.indexOf("=");
-          if (idx == 0) {
-            idx = str.indexOf("=", 1);
-          }
-
-          if (idx >= 0) {
-            yield [str.slice(0, idx), str.slice(idx + 1)];
-          }
-        }
-      }
-    } finally {
-      libc.FreeEnvironmentStringsW(env);
-    }
-  },
-
-  isExecutableFile: Task.async(function* (path) {
-    if (!OS.Path.split(path).absolute) {
-      return false;
-    }
-
-    try {
-      let info = yield OS.File.stat(path);
-      return !(info.isDir || info.isSymlink);
-    } catch (e) {
-      return false;
-    }
-  }),
-
-  /**
-   * Searches for the given executable file in the system executable
-   * file paths as specified by the PATH environment variable.
-   *
-   * On Windows, if the unadorned filename cannot be found, the
-   * extensions in the semicolon-separated list in the PATHEXT
-   * environment variable are successively appended to the original
-   * name and searched for in turn.
-   *
-   * @param {string} bin
-   *        The name of the executable to find.
-   * @param {object} environment
-   *        An object containing a key for each environment variable to be used
-   *        in the search.
-   * @returns {Promise<string>}
-   */
-  pathSearch: Task.async(function* (bin, environment) {
-    let split = OS.Path.split(bin);
-    if (split.absolute) {
-      if (yield this.isExecutableFile(bin)) {
-        return bin;
-      }
-      let error = new Error(`File at path "${bin}" does not exist, or is not a normal file`);
-      error.errorCode = SubprocessConstants.ERROR_BAD_EXECUTABLE;
-      throw error;
-    }
-
-    let dirs = [];
-    let exts = [];
-    if (environment.PATH) {
-      dirs = environment.PATH.split(";");
-    }
-    if (environment.PATHEXT) {
-      exts = environment.PATHEXT.split(";");
-    }
-
-    for (let dir of dirs) {
-      let path = OS.Path.join(dir, bin);
-
-      if (yield this.isExecutableFile(path)) {
-        return path;
-      }
-
-      for (let ext of exts) {
-        let file = path + ext;
-
-        if (yield this.isExecutableFile(file)) {
-          return file;
-        }
-      }
-    }
-    let error = new Error(`Executable not found: ${bin}`);
-    error.errorCode = SubprocessConstants.ERROR_BAD_EXECUTABLE;
-    throw error;
-  }),
-};
-
-var SubprocessImpl = SubprocessWin;