[ios] Pass more --jscomp_error switches to the closure Compiler.

components/autofill/ios/browser/resources/suggestion_controller.js

 // Copyright 2013 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.
 
-// Installs suggestion management functions on the |__gCrWeb| object.
+/**
+ * @fileoverview Installs suggestion management functions on the
+ * __gCrWeb object.
+ *
+ * TODO(crbug.com/647084): Enable checkTypes error for this file.
+ * @suppress {checkTypes}
+ */
 
 /* Beginning of anonymous object. */
 (function() {
 
 /**
  * Namespace for this file. It depends on |__gCrWeb| having already been
  * injected.
  */
-__gCrWeb['suggestion'] = {};
+__gCrWeb.suggestion = {};
+
+// Store suggestion namespace object in a global __gCrWeb object referenced by a
+// string, so it does not get renamed by closure compiler during the
+// minification.
+__gCrWeb['suggestion'] = __gCrWeb.suggestion;
 
 /**
  * Returns the first element in |elements| that is later than |elementToCompare|
  * in tab order.
  *
  * @param {Element} elementToCompare The element to start searching forward in
  *     tab order from.
  * @param {NodeList} elementList Elements in which the first element that is
  *     later than |elementToCompare| in tab order is to be returned if there is
  *     one; |elements| should be sorted in DOM tree order and should contain
@@ skipping 286 matching lines @@
  */
 __gCrWeb.suggestion['hasPreviousElement'] = function(formName, fieldName) {
   var currentElement =
       formName ? __gCrWeb.suggestion.getFormElement(formName, fieldName) :
                  document.activeElement;
   return __gCrWeb.suggestion.getPreviousElementInTabOrder(
              currentElement, document.all) !== null;
 };
 
 }());  // End of anonymous object