Modifying Autofill Agent to use synthetic form (i.e., formless elements) when no form is present on…

components/autofill/content/renderer/autofill_agent.h

 // 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.
 
 #ifndef COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 170 matching lines @@
   void OnFillPasswordSuggestion(const base::string16& username,
                                 const base::string16& password);
   void OnPreviewPasswordSuggestion(const base::string16& username,
                                    const base::string16& password);
   void OnShowInitialPasswordAccountSuggestions(
       int key,
       const PasswordFormFillData& form_data);
 
   // Called when a same-page navigation is detected.
   void OnSamePageNavigationCompleted();
+  // Helper method which collects unowned elements (i.e., those not inside a
+  // form tag) and writes them into |output|. Returns true if the process is
+  // successful, and all conditions for firing events are true.
+  bool CollectFormlessElements(FormData* output);
+  FRIEND_TEST_ALL_PREFIXES(FormAutocompleteTest, CollectFormlessElements);
 
   // Called in a posted task by textFieldDidChange() to work-around a WebKit bug
   // http://bugs.webkit.org/show_bug.cgi?id=16976
   void TextFieldDidChangeImpl(const blink::WebFormControlElement& element);
 
   // Shows the autofill suggestions for |element|. This call is asynchronous
   // and may or may not lead to the showing of a suggestion popup (no popup is
   // shown if there are no available suggestions).
   void ShowSuggestions(const blink::WebFormControlElement& element,
                        const ShowSuggestionsOptions& options);
@@ skipping 62 matching lines @@
 
   // The element corresponding to the last request sent for form field Autofill.
   blink::WebFormControlElement element_;
 
   // The form element currently requesting an interactive autocomplete.
   blink::WebFormElement in_flight_request_form_;
 
   // Last form which was interacted with by the user.
   blink::WebFormElement last_interacted_form_;
 
+  // When dealing with forms that don't use a <form> tag, we keep track of the
+  // elements the user has modified so we can determine when submission occurs.
+  std::set<blink::WebFormControlElement> formless_elements_user_edited_;
+
   // Was the query node autofilled prior to previewing the form?
   bool was_query_node_autofilled_;
 
   // Whether or not to ignore text changes.  Useful for when we're committing
   // a composition when we are defocusing the WebView and we don't want to
   // trigger an autofill popup to show.
   bool ignore_text_changes_;
 
   // Whether the Autofill popup is possibly visible.  This is tracked as a
   // performance improvement, so that the IPC channel isn't flooded with
@@ skipping 11 matching lines @@
   mojom::AutofillDriverPtr mojo_autofill_driver_;
 
   base::WeakPtrFactory<AutofillAgent> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_