[Autofill] Enable Autofill for dynamically created forms.

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 <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "components/autofill/content/renderer/form_cache.h"
 #include "components/autofill/content/renderer/page_click_listener.h"
-#include "components/autofill/core/common/forms_seen_state.h"
 #include "content/public/renderer/render_view_observer.h"
 #include "third_party/WebKit/public/web/WebAutofillClient.h"
 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 #include "third_party/WebKit/public/web/WebFormElement.h"
 #include "third_party/WebKit/public/web/WebInputElement.h"
 
 namespace blink {
 class WebNode;
 class WebView;
 struct WebAutocompleteParams;
@@ skipping 129 matching lines @@
   // Set |node| to display the given |value|.
   void FillFieldWithValue(const base::string16& value,
                           blink::WebInputElement* node);
 
   // Set |node| to display the given |value| as a preview.  The preview is
   // visible on screen to the user, but not visible to the page via the DOM or
   // JavaScript.
   void PreviewFieldWithValue(const base::string16& value,
                              blink::WebInputElement* node);
 
+  // Notifies browser of new fillable forms in |frame|.
+  void ProcessForms(const blink::WebLocalFrame& frame);
+
   // Hides any currently showing Autofill popup.
   void HidePopup();
 
   FormCache form_cache_;
 
   PasswordAutofillAgent* password_autofill_agent_;  // Weak reference.
   PasswordGenerationAgent* password_generation_agent_;  // Weak reference.
 
   // The ID of the last request sent for form field Autofill.  Used to ignore
   // out of date responses.
@@ skipping 31 matching lines @@
   // 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
   // messages to close the Autofill popup when it can't possibly be showing.
   bool is_popup_possibly_visible_;
 
-  // Timestamp of first time forms are seen.
-  base::TimeTicks forms_seen_timestamp_;
+  // True if a message has already been sent about forms for the main frame.
+  // When the main frame is first loaded, a message is sent even if no forms
+  // exist in the frame. Otherwise, such messages are supressed.
+  bool main_frame_processed_;
 
   base::WeakPtrFactory<AutofillAgent> weak_ptr_factory_;
 
   friend class PasswordAutofillAgentTest;
   friend class RequestAutocompleteRendererTest;
   FRIEND_TEST_ALL_PREFIXES(AutofillRendererTest, FillFormElement);
   FRIEND_TEST_ALL_PREFIXES(AutofillRendererTest, SendDynamicForms);
   FRIEND_TEST_ALL_PREFIXES(AutofillRendererTest, ShowAutofillWarning);
   FRIEND_TEST_ALL_PREFIXES(PasswordAutofillAgentTest, WaitUsername);
   FRIEND_TEST_ALL_PREFIXES(PasswordAutofillAgentTest, SuggestionAccept);
   FRIEND_TEST_ALL_PREFIXES(PasswordAutofillAgentTest, SuggestionSelect);
   FRIEND_TEST_ALL_PREFIXES(
       PasswordAutofillAgentTest,
       PasswordAutofillTriggersOnChangeEventsWaitForUsername);
   FRIEND_TEST_ALL_PREFIXES(RequestAutocompleteRendererTest,
                            NoCancelOnMainFrameNavigateAfterDone);
   FRIEND_TEST_ALL_PREFIXES(RequestAutocompleteRendererTest,
                            NoCancelOnSubframeNavigateAfterDone);
   FRIEND_TEST_ALL_PREFIXES(RequestAutocompleteRendererTest,
                            InvokingTwiceOnlyShowsOnce);
 
   DISALLOW_COPY_AND_ASSIGN(AutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_