Issue #65 - Remove AppConstants from toolkit/modules

Except for secondscreen

10 files changed, 174 insertions, 168 deletions

diff --git a/toolkit/modules/LightweightThemeConsumer.jsm b/toolkit/modules/LightweightThemeConsumer.jsm
index cd456eac2e..325f711b78 100644
--- a/toolkit/modules/LightweightThemeConsumer.jsm
+++ b/toolkit/modules/LightweightThemeConsumer.jsm
@@ -8,7 +8,6 @@ const {utils: Cu} = Components;
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/AppConstants.jsm");
 
 XPCOMUtils.defineLazyModuleGetter(this, "LightweightThemeImageOptimizer",
   "resource://gre/modules/addons/LightweightThemeImageOptimizer.jsm");
@@ -148,12 +147,13 @@ LightweightThemeConsumer.prototype = {
         footer.removeAttribute("lwthemefooter");
     }
 
+#ifdef XP_MACOSX
     // On OS X, we extend the lightweight theme into the titlebar, which means setting
     // the chromemargin attribute. Some XUL applications already draw in the titlebar,
     // so we need to save the chromemargin value before we overwrite it with the value
     // that lets us draw in the titlebar. We stash this value on the root attribute so
     // that XUL applications have the ability to invalidate the saved value.
-    if (AppConstants.platform == "macosx" && stateChanging) {
+    if (stateChanging) {
       if (!root.hasAttribute("chromemargin-nonlwtheme")) {
         root.setAttribute("chromemargin-nonlwtheme", root.getAttribute("chromemargin"));
       }
@@ -169,6 +169,7 @@ LightweightThemeConsumer.prototype = {
         }
       }
     }
+#endif
     Services.obs.notifyObservers(this._win, "lightweight-theme-window-updated",
                                  JSON.stringify(aData));
   }
diff --git a/toolkit/modules/ResetProfile.jsm b/toolkit/modules/ResetProfile.jsm
index c1839af4ff..25ab8b9661 100644
--- a/toolkit/modules/ResetProfile.jsm
+++ b/toolkit/modules/ResetProfile.jsm
@@ -9,14 +9,21 @@ this.EXPORTED_SYMBOLS = ["ResetProfile"];
 const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
 
 Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/AppConstants.jsm");
 
-// For Basilisk and Pale Moon
-// Hard-code MOZ_APP_NAME to firefox because of hard-coded type in migrator.
-const MOZ_APP_NAME = (((AppConstants.MOZ_APP_NAME == "basilisk")
-                         || (AppConstants.MOZ_APP_NAME == "palemoon"))
-                     ? "firefox" : AppConstants.MOZ_APP_NAME);
-const MOZ_BUILD_APP = AppConstants.MOZ_BUILD_APP;
+// We need to tell the migrator that many different applications are Mozilla applications
+#ifdef MOZ_PHOENIX
+const MOZ_APP_NAME = "firefox";
+const MOZ_BUILD_APP = "browser";
+#elifdef MOZ_THUNDERBIRD
+const MOZ_APP_NAME = "thunderbird";
+const MOZ_BUILD_APP = "mail";
+#elif defined(MOZ_SUITE) && !defined(BINOC_BOREALIS)
+const MOZ_APP_NAME = "seamonkey";
+const MOZ_BUILD_APP = "suite";
+#else
+#expand const MOZ_APP_NAME = "__MOZ_APP_NAME__";
+#expand const MOZ_BUILD_APP = "__MOZ_BUILD_APP__".match(/([^\/]*)\/*$/)[1];
+#endif
 
 this.ResetProfile = {
   /**
diff --git a/toolkit/modules/Services.jsm b/toolkit/modules/Services.jsm
index 1796acd4c4..9b5082efd4 100644
--- a/toolkit/modules/Services.jsm
+++ b/toolkit/modules/Services.jsm
@@ -8,7 +8,6 @@ const Ci = Components.interfaces;
 const Cc = Components.classes;
 const Cr = Components.results;
 
-Components.utils.import("resource://gre/modules/AppConstants.jsm");
 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
 
 this.Services = {};
diff --git a/toolkit/modules/UpdateUtils.jsm b/toolkit/modules/UpdateUtils.jsm
index 4c6e7776d8..aaec77042e 100644
--- a/toolkit/modules/UpdateUtils.jsm
+++ b/toolkit/modules/UpdateUtils.jsm
@@ -8,7 +8,6 @@ this.EXPORTED_SYMBOLS = ["UpdateUtils"];
 
 const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
 
-Cu.import("resource://gre/modules/AppConstants.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/NetUtil.jsm");
@@ -34,8 +33,7 @@ this.UpdateUtils = {
    */
   getUpdateChannel(aIncludePartners = true) {
     let defaults = Services.prefs.getDefaultBranch(null);
-    let channel = defaults.getCharPref("app.update.channel",
-                                       AppConstants.MOZ_UPDATE_CHANNEL);
+#expand    let channel = defaults.getCharPref("app.update.channel", "__MOZ_UPDATE_CHANNEL__");
 
     if (aIncludePartners) {
       try {
@@ -132,49 +130,48 @@ XPCOMUtils.defineLazyGetter(UpdateUtils, "Locale", function() {
  * Provides adhoc system capability information for application update.
  */
 XPCOMUtils.defineLazyGetter(this, "gSystemCapabilities", function aus_gSC() {
-  if (AppConstants.platform == "win") {
-    const PF_MMX_INSTRUCTIONS_AVAILABLE = 3; // MMX
-    const PF_XMMI_INSTRUCTIONS_AVAILABLE = 6; // SSE
-    const PF_XMMI64_INSTRUCTIONS_AVAILABLE = 10; // SSE2
-    const PF_SSE3_INSTRUCTIONS_AVAILABLE = 13; // SSE3
-
-    let lib = ctypes.open("kernel32.dll");
-    let IsProcessorFeaturePresent = lib.declare("IsProcessorFeaturePresent",
-                                                ctypes.winapi_abi,
-                                                ctypes.int32_t, /* success */
-                                                ctypes.uint32_t); /* DWORD */
-    let instructionSet = "unknown";
-    try {
-      if (IsProcessorFeaturePresent(PF_SSE3_INSTRUCTIONS_AVAILABLE)) {
-        instructionSet = "SSE3";
-      } else if (IsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE)) {
-        instructionSet = "SSE2";
-      } else if (IsProcessorFeaturePresent(PF_XMMI_INSTRUCTIONS_AVAILABLE)) {
-        instructionSet = "SSE";
-      } else if (IsProcessorFeaturePresent(PF_MMX_INSTRUCTIONS_AVAILABLE)) {
-        instructionSet = "MMX";
-      }
-    } catch (e) {
-      instructionSet = "error";
-      Cu.reportError("Error getting processor instruction set. " +
-                     "Exception: " + e);
-    }
-
-    lib.close();
-    return instructionSet;
-  }
-
-  if (AppConstants == "linux") {
-    let instructionSet = "unknown";
-    if (navigator.cpuHasSSE2) {
+#ifdef XP_WIN
+  const PF_MMX_INSTRUCTIONS_AVAILABLE = 3; // MMX
+  const PF_XMMI_INSTRUCTIONS_AVAILABLE = 6; // SSE
+  const PF_XMMI64_INSTRUCTIONS_AVAILABLE = 10; // SSE2
+  const PF_SSE3_INSTRUCTIONS_AVAILABLE = 13; // SSE3
+
+  let lib = ctypes.open("kernel32.dll");
+  let IsProcessorFeaturePresent = lib.declare("IsProcessorFeaturePresent",
+                                              ctypes.winapi_abi,
+                                              ctypes.int32_t, /* success */
+                                              ctypes.uint32_t); /* DWORD */
+  let instructionSet = "unknown";
+  try {
+    if (IsProcessorFeaturePresent(PF_SSE3_INSTRUCTIONS_AVAILABLE)) {
+      instructionSet = "SSE3";
+    } else if (IsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE)) {
       instructionSet = "SSE2";
+    } else if (IsProcessorFeaturePresent(PF_XMMI_INSTRUCTIONS_AVAILABLE)) {
+      instructionSet = "SSE";
+    } else if (IsProcessorFeaturePresent(PF_MMX_INSTRUCTIONS_AVAILABLE)) {
+      instructionSet = "MMX";
     }
-    return instructionSet;
+  } catch (e) {
+    instructionSet = "error";
+    Cu.reportError("Error getting processor instruction set. " +
+                   "Exception: " + e);
   }
 
+  lib.close();
+  return instructionSet;
+#elifdef XP_LINUX
+  let instructionSet = "unknown";
+  if (navigator.cpuHasSSE2) {
+    instructionSet = "SSE2";
+  }
+  return instructionSet;
+#else
   return "NA"
+#endif
 });
 
+#ifdef XP_WIN
 /* Windows only getter that returns the processor architecture. */
 XPCOMUtils.defineLazyGetter(this, "gWinCPUArch", function aus_gWinCPUArch() {
   // Get processor architecture
@@ -239,6 +236,7 @@ XPCOMUtils.defineLazyGetter(this, "gWinCPUArch", function aus_gWinCPUArch() {
 
   return arch;
 });
+#endif
 
 XPCOMUtils.defineLazyGetter(UpdateUtils, "ABI", function() {
   let abi = null;
@@ -249,19 +247,20 @@ XPCOMUtils.defineLazyGetter(UpdateUtils, "ABI", function() {
     Cu.reportError("XPCOM ABI unknown");
   }
 
-  if (AppConstants.platform == "macosx") {
-    // Mac universal build should report a different ABI than either macppc
-    // or mactel.
-    let macutils = Cc["@mozilla.org/xpcom/mac-utils;1"].
-                   getService(Ci.nsIMacUtils);
+#ifdef XP_MACOSX
+  // Mac universal build should report a different ABI than either macppc
+  // or mactel.
+  let macutils = Cc["@mozilla.org/xpcom/mac-utils;1"].
+                 getService(Ci.nsIMacUtils);
 
-    if (macutils.isUniversalBinary) {
-      abi += "-u-" + macutils.architecturesInBinary;
-    }
-  } else if (AppConstants.platform == "win") {
-    // Windows build should report the CPU architecture that it's running on.
-    abi += "-" + gWinCPUArch;
+  if (macutils.isUniversalBinary) {
+    abi += "-u-" + macutils.architecturesInBinary;
   }
+#elifdef XP_WIN
+  // Windows build should report the CPU architecture that it's running on.
+  abi += "-" + gWinCPUArch;
+#endif
+
   return abi;
 });
 
@@ -275,95 +274,96 @@ XPCOMUtils.defineLazyGetter(UpdateUtils, "OSVersion", function() {
     Cu.reportError("OS Version unknown.");
   }
 
+#ifdef XP_WIN
   if (osVersion) {
-    if (AppConstants.platform == "win") {
-      const BYTE = ctypes.uint8_t;
-      const WORD = ctypes.uint16_t;
-      const DWORD = ctypes.uint32_t;
-      const WCHAR = ctypes.char16_t;
-      const BOOL = ctypes.int;
-
-      // This structure is described at:
-      // http://msdn.microsoft.com/en-us/library/ms724833%28v=vs.85%29.aspx
-      const SZCSDVERSIONLENGTH = 128;
-      const OSVERSIONINFOEXW = new ctypes.StructType('OSVERSIONINFOEXW',
-          [
-          {dwOSVersionInfoSize: DWORD},
-          {dwMajorVersion: DWORD},
-          {dwMinorVersion: DWORD},
-          {dwBuildNumber: DWORD},
-          {dwPlatformId: DWORD},
-          {szCSDVersion: ctypes.ArrayType(WCHAR, SZCSDVERSIONLENGTH)},
-          {wServicePackMajor: WORD},
-          {wServicePackMinor: WORD},
-          {wSuiteMask: WORD},
-          {wProductType: BYTE},
-          {wReserved: BYTE}
-          ]);
-
-      // This structure is described at:
-      // http://msdn.microsoft.com/en-us/library/ms724958%28v=vs.85%29.aspx
-      const SYSTEM_INFO = new ctypes.StructType('SYSTEM_INFO',
-          [
-          {wProcessorArchitecture: WORD},
-          {wReserved: WORD},
-          {dwPageSize: DWORD},
-          {lpMinimumApplicationAddress: ctypes.voidptr_t},
-          {lpMaximumApplicationAddress: ctypes.voidptr_t},
-          {dwActiveProcessorMask: DWORD.ptr},
-          {dwNumberOfProcessors: DWORD},
-          {dwProcessorType: DWORD},
-          {dwAllocationGranularity: DWORD},
-          {wProcessorLevel: WORD},
-          {wProcessorRevision: WORD}
-          ]);
-
-      let kernel32 = false;
-      try {
-        kernel32 = ctypes.open("Kernel32");
-      } catch (e) {
-        Cu.reportError("Unable to open kernel32! " + e);
-        osVersion += ".unknown (unknown)";
-      }
+    const BYTE = ctypes.uint8_t;
+    const WORD = ctypes.uint16_t;
+    const DWORD = ctypes.uint32_t;
+    const WCHAR = ctypes.char16_t;
+    const BOOL = ctypes.int;
+
+    // This structure is described at:
+    // http://msdn.microsoft.com/en-us/library/ms724833%28v=vs.85%29.aspx
+    const SZCSDVERSIONLENGTH = 128;
+    const OSVERSIONINFOEXW = new ctypes.StructType('OSVERSIONINFOEXW',
+        [
+        {dwOSVersionInfoSize: DWORD},
+        {dwMajorVersion: DWORD},
+        {dwMinorVersion: DWORD},
+        {dwBuildNumber: DWORD},
+        {dwPlatformId: DWORD},
+        {szCSDVersion: ctypes.ArrayType(WCHAR, SZCSDVERSIONLENGTH)},
+        {wServicePackMajor: WORD},
+        {wServicePackMinor: WORD},
+        {wSuiteMask: WORD},
+        {wProductType: BYTE},
+        {wReserved: BYTE}
+        ]);
+
+    // This structure is described at:
+    // http://msdn.microsoft.com/en-us/library/ms724958%28v=vs.85%29.aspx
+    const SYSTEM_INFO = new ctypes.StructType('SYSTEM_INFO',
+        [
+        {wProcessorArchitecture: WORD},
+        {wReserved: WORD},
+        {dwPageSize: DWORD},
+        {lpMinimumApplicationAddress: ctypes.voidptr_t},
+        {lpMaximumApplicationAddress: ctypes.voidptr_t},
+        {dwActiveProcessorMask: DWORD.ptr},
+        {dwNumberOfProcessors: DWORD},
+        {dwProcessorType: DWORD},
+        {dwAllocationGranularity: DWORD},
+        {wProcessorLevel: WORD},
+        {wProcessorRevision: WORD}
+        ]);
+
+    let kernel32 = false;
+    try {
+      kernel32 = ctypes.open("Kernel32");
+    } catch (e) {
+      Cu.reportError("Unable to open kernel32! " + e);
+      osVersion += ".unknown (unknown)";
+    }
 
-      if (kernel32) {
+    if (kernel32) {
+      try {
+        // Get Service pack info
         try {
-          // Get Service pack info
-          try {
-            let GetVersionEx = kernel32.declare("GetVersionExW",
-                                                ctypes.default_abi,
-                                                BOOL,
-                                                OSVERSIONINFOEXW.ptr);
-            let winVer = OSVERSIONINFOEXW();
-            winVer.dwOSVersionInfoSize = OSVERSIONINFOEXW.size;
-
-            if (0 !== GetVersionEx(winVer.address())) {
-              osVersion += "." + winVer.wServicePackMajor +
-                           "." + winVer.wServicePackMinor;
-            } else {
-              Cu.reportError("Unknown failure in GetVersionEX (returned 0)");
-              osVersion += ".unknown";
-            }
-          } catch (e) {
-            Cu.reportError("Error getting service pack information. Exception: " + e);
+          let GetVersionEx = kernel32.declare("GetVersionExW",
+                                              ctypes.default_abi,
+                                              BOOL,
+                                              OSVERSIONINFOEXW.ptr);
+          let winVer = OSVERSIONINFOEXW();
+          winVer.dwOSVersionInfoSize = OSVERSIONINFOEXW.size;
+
+          if (0 !== GetVersionEx(winVer.address())) {
+            osVersion += "." + winVer.wServicePackMajor +
+                         "." + winVer.wServicePackMinor;
+          } else {
+            Cu.reportError("Unknown failure in GetVersionEX (returned 0)");
             osVersion += ".unknown";
           }
-        } finally {
-          kernel32.close();
+        } catch (e) {
+          Cu.reportError("Error getting service pack information. Exception: " + e);
+          osVersion += ".unknown";
         }
-
-        // Add processor architecture
-        osVersion += " (" + gWinCPUArch + ")";
+      } finally {
+        kernel32.close();
       }
-    }
 
-    try {
-      osVersion += " (" + Services.sysinfo.getProperty("secondaryLibrary") + ")";
+      // Add processor architecture
+      osVersion += " (" + gWinCPUArch + ")";
     }
-    catch (e) {
-      // Not all platforms have a secondary widget library, so an error is nothing to worry about.
-    }
-    osVersion = encodeURIComponent(osVersion);
   }
+
+  try {
+    osVersion += " (" + Services.sysinfo.getProperty("secondaryLibrary") + ")";
+  }
+  catch (e) {
+    // Not all platforms have a secondary widget library, so an error is nothing to worry about.
+  }
+  osVersion = encodeURIComponent(osVersion);
+#endif
+
   return osVersion;
 });
diff --git a/toolkit/modules/WindowDraggingUtils.jsm b/toolkit/modules/WindowDraggingUtils.jsm
index 0cc2e88e90..a7986c8b4a 100644
--- a/toolkit/modules/WindowDraggingUtils.jsm
+++ b/toolkit/modules/WindowDraggingUtils.jsm
@@ -2,9 +2,11 @@
  * 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/. */
 
-Components.utils.import("resource://gre/modules/AppConstants.jsm");
-
-const HAVE_CSS_WINDOW_DRAG_SUPPORT = ["win", "macosx"].includes(AppConstants.platform);
+#if defined(XP_WIN) || defined(XP_MACOSX)
+const HAVE_CSS_WINDOW_DRAG_SUPPORT = true;
+#else
+const HAVE_CSS_WINDOW_DRAG_SUPPORT = false;
+#endif
 
 this.EXPORTED_SYMBOLS = [ "WindowDraggingElement" ];
 
@@ -62,12 +64,13 @@ WindowDraggingElement.prototype = {
         if (!this.shouldDrag(aEvent))
           return;
 
-        if (/^gtk/i.test(AppConstants.MOZ_WIDGET_TOOLKIT)) {
-          // On GTK, there is a toolkit-level function which handles
-          // window dragging, which must be used.
-          this._window.beginWindowMove(aEvent, isPanel ? this._elem : null);
-          break;
-        }
+#ifdef MOZ_WIDGET_GTK
+        // On GTK, there is a toolkit-level function which handles
+        // window dragging, which must be used.
+        this._window.beginWindowMove(aEvent, isPanel ? this._elem : null);
+        break;
+#endif
+
         if (isPanel) {
           let screenRect = this._elem.getOuterScreenRect();
           this._deltaX = aEvent.screenX - screenRect.left;
diff --git a/toolkit/modules/addons/WebRequest.jsm b/toolkit/modules/addons/WebRequest.jsm
index 76114d7bac..26118e43f9 100644
--- a/toolkit/modules/addons/WebRequest.jsm
+++ b/toolkit/modules/addons/WebRequest.jsm
@@ -19,8 +19,6 @@ Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/Task.jsm");
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 
-XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
-                                  "resource://gre/modules/AppConstants.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "BrowserUtils",
                                   "resource://gre/modules/BrowserUtils.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "ExtensionUtils",
@@ -842,9 +840,9 @@ var onBeforeRequest = {
   get allowedOptions() {
     delete this.allowedOptions;
     this.allowedOptions = ["blocking"];
-    if (!AppConstants.RELEASE_OR_BETA) {
-      this.allowedOptions.push("requestBody");
-    }
+#ifndef RELEASE_OR_BETA
+    this.allowedOptions.push("requestBody");
+#endif
     return this.allowedOptions;
   },
   addListener(callback, filter = null, opt_extraInfoSpec = null) {
diff --git a/toolkit/modules/moz.build b/toolkit/modules/moz.build
index 6b181b6aa3..90546267ed 100644
--- a/toolkit/modules/moz.build
+++ b/toolkit/modules/moz.build
@@ -74,7 +74,6 @@ EXTRA_JS_MODULES += [
     'RemotePageManager.jsm',
     'RemoteSecurityUI.jsm',
     'RemoteWebProgress.jsm',
-    'ResetProfile.jsm',
     'ResponsivenessMonitor.jsm',
     'secondscreen/PresentationApp.jsm',
     'secondscreen/RokuApp.jsm',
@@ -93,7 +92,6 @@ EXTRA_JS_MODULES += [
     'Task.jsm',
     'Timer.jsm',
     'WebChannel.jsm',
-    'WindowDraggingUtils.jsm',
     'ZipUtils.jsm',
 ]
 EXTRA_JS_MODULES.third_party.jsesc += ['third_party/jsesc/jsesc.js']
@@ -101,8 +99,10 @@ EXTRA_JS_MODULES.sessionstore += ['sessionstore/Utils.jsm']
 
 EXTRA_PP_JS_MODULES += [
     'NewTabUtils.jsm',
+    'ResetProfile.jsm',
     'Troubleshoot.jsm',
     'UpdateUtils.jsm',
+    'WindowDraggingUtils.jsm',
 ]
 
 if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'cocoa'):
@@ -120,7 +120,7 @@ EXTRA_PP_JS_MODULES += [
 ]
 
 if 'Android' != CONFIG['OS_TARGET']:
-    EXTRA_JS_MODULES += [
+    EXTRA_PP_JS_MODULES += [
         'LightweightThemeConsumer.jsm',
     ]
 
diff --git a/toolkit/modules/subprocess/Subprocess.jsm b/toolkit/modules/subprocess/Subprocess.jsm
index 6d0d27d777..e4e4156df5 100644
--- a/toolkit/modules/subprocess/Subprocess.jsm
+++ b/toolkit/modules/subprocess/Subprocess.jsm
@@ -18,17 +18,16 @@ let EXPORTED_SYMBOLS = ["Subprocess"];
 
 var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
 
-Cu.import("resource://gre/modules/AppConstants.jsm");
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/subprocess/subprocess_common.jsm");
 
-if (AppConstants.platform == "win") {
-  XPCOMUtils.defineLazyModuleGetter(this, "SubprocessImpl",
-                                    "resource://gre/modules/subprocess/subprocess_win.jsm");
-} else {
-  XPCOMUtils.defineLazyModuleGetter(this, "SubprocessImpl",
-                                    "resource://gre/modules/subprocess/subprocess_unix.jsm");
-}
+#ifdef XP_WIN
+XPCOMUtils.defineLazyModuleGetter(this, "SubprocessImpl",
+                                  "resource://gre/modules/subprocess/subprocess_win.jsm");
+#else
+XPCOMUtils.defineLazyModuleGetter(this, "SubprocessImpl",
+                                  "resource://gre/modules/subprocess/subprocess_unix.jsm");
+#endif
 
 /**
  * Allows for creation of and communication with OS-level sub-processes.
diff --git a/toolkit/modules/subprocess/moz.build b/toolkit/modules/subprocess/moz.build
index e7a1f526a4..c4548c8f6c 100644
--- a/toolkit/modules/subprocess/moz.build
+++ b/toolkit/modules/subprocess/moz.build
@@ -4,7 +4,7 @@
 # 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/.
 
-EXTRA_JS_MODULES += [
+EXTRA_PP_JS_MODULES += [
     'Subprocess.jsm',
 ]
 
diff --git a/toolkit/modules/subprocess/subprocess_win.jsm b/toolkit/modules/subprocess/subprocess_win.jsm
index aac625f725..aceedd3e82 100644
--- a/toolkit/modules/subprocess/subprocess_win.jsm
+++ b/toolkit/modules/subprocess/subprocess_win.jsm
@@ -15,7 +15,6 @@ var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
 
 var EXPORTED_SYMBOLS = ["SubprocessImpl"];
 
-Cu.import("resource://gre/modules/AppConstants.jsm");
 Cu.import("resource://gre/modules/ctypes.jsm");
 Cu.import("resource://gre/modules/osfile.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
@@ -35,7 +34,7 @@ class WinPromiseWorker extends PromiseWorker {
     this.signalEvent = libc.CreateSemaphoreW(null, 0, 32, null);
 
     this.call("init", [{
-      breakAwayFromJob: !AppConstants.isPlatformAndVersionAtLeast("win", "6.2"),
+      breakAwayFromJob: Services.vc.compare(Services.sysinfo.getProperty("version"), "6.2") <= 0,
       comspec: env.get("COMSPEC"),
       signalEvent: String(ctypes.cast(this.signalEvent, ctypes.uintptr_t).value),
     }]);