Bug 815246 - GCLI helper buttons shouldn't be available in the remote window; r=paul

browser/devtools/framework/Toolbox.jsm

@@ -233,6 +233,10 @@ Toolbox.prototype = {
    *        The iframe to contain the buttons
    */
   _buildButtons: function TBOX_buildButtons(frame) {
+    if (this.target.isRemote) {
+      return;
+    }
+
     let toolbarSpec = CommandUtils.getCommandbarSpec("devtools.toolbox.toolbarSpec");
     let environment = { chromeDocument: frame.ownerDocument };
     let requisition = new Requisition(environment);