Exclude readonly and disabled elements from autofill form.

components/autofill/content/renderer/form_autofill_util.cc

 // 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.
 
 #include "components/autofill/content/renderer/form_autofill_util.h"
 
 #include <map>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 56 matching lines @@
 bool IsNoScriptElement(const WebElement& element) {
   CR_DEFINE_STATIC_LOCAL(WebString, kNoScript, ("noscript"));
   return element.hasHTMLTagName(kNoScript);
 }
 
 bool HasTagName(const WebNode& node, const blink::WebString& tag) {
   return node.isElementNode() && node.toConst<WebElement>().hasHTMLTagName(tag);
 }
 
 bool IsAutofillableElement(const WebFormControlElement& element) {
+  // Exclude disabled and readonly elements.
+  if (!element.isEnabled() || element.isReadOnly())
+    return false;
+
   const WebInputElement* input_element = toWebInputElement(&element);
   return IsAutofillableInputElement(input_element) ||
          IsSelectElement(element) ||
          IsTextAreaElement(element);
 }
 
 // Check whether the given field satisfies the REQUIRE_AUTOCOMPLETE requirement.
 bool SatisfiesRequireAutocomplete(const WebInputElement& input_element) {
   return input_element.autoComplete();
 }
@@ skipping 1067 matching lines @@
 
 gfx::RectF GetScaledBoundingBox(float scale, WebFormControlElement* element) {
   gfx::Rect bounding_box(element->boundsInViewportSpace());
   return gfx::RectF(bounding_box.x() * scale,
                     bounding_box.y() * scale,
                     bounding_box.width() * scale,
                     bounding_box.height() * scale);
 }
 
 }  // namespace autofill