Send IPC from renderer to browser on each Autocheckout page completion

components/autofill/core/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 "base/time/time.h"
 #include "components/autofill/core/common/autocheckout_status.h"
@@ skipping 250 matching lines @@
 
 // Instructs the browser to show the Autofill dialog.
 IPC_MESSAGE_ROUTED0(AutofillHostMsg_ShowAutofillDialog)
 
 // Send when a text field is done editing.
 IPC_MESSAGE_ROUTED0(AutofillHostMsg_DidEndTextFieldEditing)
 
 // Instructs the browser to hide the Autofill UI.
 IPC_MESSAGE_ROUTED0(AutofillHostMsg_HideAutofillUi)
 
-// Sent when the renderer attempts to click an element in an Autocheckout flow
-// and either the element could not be found or the click did not have the
-// desired effect.
-IPC_MESSAGE_ROUTED1(AutofillHostMsg_ClickFailed,
+// Sent when the renderer filled an Autocheckout page and clicked the proceed
+// button or if there was an error.
+IPC_MESSAGE_ROUTED1(AutofillHostMsg_AutocheckoutPageCompleted,
                     autofill::AutocheckoutStatus /* status */)
 
 // Instructs the browser to show the password generation bubble at the
 // specified location. This location should be specified in the renderers
 // coordinate system. Form is the form associated with the password field.
 IPC_MESSAGE_ROUTED3(AutofillHostMsg_ShowPasswordGenerationPopup,
                     gfx::Rect /* source location */,
                     int /* max length of the password */,
                     content::PasswordForm)
 
 // Instruct the browser that a password mapping has been found for a field.
 IPC_MESSAGE_ROUTED2(AutofillHostMsg_AddPasswordFormMapping,
                     autofill::FormFieldData, /* the user name field */
                     autofill::PasswordFormFillData /* password pairings */)
 
 // Instruct the browser to show a popup with the following suggestions from the
 // password manager.
 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_ROUTED4(AutofillHostMsg_SetDataList,
                     std::vector<base::string16> /* values */,
                     std::vector<base::string16> /* labels */,
                     std::vector<base::string16> /* icons */,
                     std::vector<int> /* unique ids */)