[Autofill] Enable Autofill for dynamically created forms.

components/autofill/content/common/autofill_messages.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.
 
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 #include <vector>
 
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "components/autofill/content/common/autofill_param_traits_macros.h"
 #include "components/autofill/core/common/form_data.h"
 #include "components/autofill/core/common/form_data_predictions.h"
 #include "components/autofill/core/common/form_field_data.h"
 #include "components/autofill/core/common/form_field_data_predictions.h"
-#include "components/autofill/core/common/forms_seen_state.h"
 #include "components/autofill/core/common/password_form.h"
 #include "components/autofill/core/common/password_form_fill_data.h"
 #include "components/autofill/core/common/web_element_descriptor.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/common_param_traits_macros.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_message_utils.h"
 #include "third_party/WebKit/public/web/WebFormElement.h"
 #include "ui/gfx/rect.h"
 #include "url/gurl.h"
 
 #define IPC_MESSAGE_START AutofillMsgStart
 
-IPC_ENUM_TRAITS_MAX_VALUE(autofill::FormsSeenState,
-                          autofill::FORMS_SEEN_STATE_NUM_STATES - 1)
 IPC_ENUM_TRAITS_MAX_VALUE(base::i18n::TextDirection,
                           base::i18n::TEXT_DIRECTION_NUM_DIRECTIONS - 1)
 
 IPC_STRUCT_TRAITS_BEGIN(autofill::WebElementDescriptor)
   IPC_STRUCT_TRAITS_MEMBER(descriptor)
   IPC_STRUCT_TRAITS_MEMBER(retrieval_method)
 IPC_STRUCT_TRAITS_END()
 
 IPC_ENUM_TRAITS_MAX_VALUE(autofill::WebElementDescriptor::RetrievalMethod,
                           autofill::WebElementDescriptor::NONE)
@@ skipping 121 matching lines @@
 IPC_MESSAGE_ROUTED1(AutofillMsg_AccountCreationFormsDetected,
                     std::vector<autofill::FormData> /* forms */)
 
 // Autofill messages sent from the renderer to the browser.
 
 // TODO(creis): check in the browser that the renderer actually has permission
 // for the URL to avoid compromised renderers talking to the browser.
 
 // Notification that forms have been seen that are candidates for
 // filling/submitting by the AutofillManager.
-IPC_MESSAGE_ROUTED3(AutofillHostMsg_FormsSeen,
+IPC_MESSAGE_ROUTED2(AutofillHostMsg_FormsSeen,
                     std::vector<autofill::FormData> /* forms */,
-                    base::TimeTicks /* timestamp */,
-                    autofill::FormsSeenState /* state */)
+                    base::TimeTicks /* timestamp */)
 
 // Notification that password forms have been seen that are candidates for
 // filling/submitting by the password manager.
 IPC_MESSAGE_ROUTED1(AutofillHostMsg_PasswordFormsParsed,
                     std::vector<autofill::PasswordForm> /* forms */)
 
 // Notification that initial layout has occurred and the following password
 // forms are visible on the page (e.g. not set to display:none.)
 IPC_MESSAGE_ROUTED1(AutofillHostMsg_PasswordFormsRendered,
                     std::vector<autofill::PasswordForm> /* forms */)
@@ skipping 75 matching lines @@
 IPC_MESSAGE_ROUTED4(AutofillHostMsg_ShowPasswordSuggestions,
                     autofill::FormFieldData /* the form field */,
                     gfx::RectF /* input field bounds, window-relative */,
                     std::vector<base::string16> /* suggestions */,
                     std::vector<base::string16> /* realms */)
 
 // Inform browser of data list values for the curent field.
 IPC_MESSAGE_ROUTED2(AutofillHostMsg_SetDataList,
                     std::vector<base::string16> /* values */,
                     std::vector<base::string16> /* labels */)