import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/shared/shims/Console.jsm

@@ -0,0 +1,35 @@
+/* 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";
+
+/**
+ * This file only exists to support add-ons which import this module at a
+ * specific path.
+ */
+
+const Cu = Components.utils;
+
+const { Services } = Cu.import("resource://gre/modules/Services.jsm", {});
+
+const WARNING_PREF = "devtools.migration.warnings";
+if (Services.prefs.getBoolPref(WARNING_PREF)) {
+  const { Deprecated } = Cu.import("resource://gre/modules/Deprecated.jsm", {});
+  Deprecated.warning("This path to Console.jsm is deprecated.  Please use " +
+                     "Cu.import(\"resource://gre/modules/Console.jsm\") " +
+                     "to load this module.",
+                     "https://bugzil.la/912121");
+}
+
+this.EXPORTED_SYMBOLS = [
+  "console",
+  "ConsoleAPI"
+];
+
+const module =
+  Cu.import("resource://gre/modules/Console.jsm", {});
+
+for (let symbol of this.EXPORTED_SYMBOLS) {
+  this[symbol] = module[symbol];
+}