[Autofill] Migrate ContentAutofillDriver<-->AutofillAgent IPCs to mojo.

components/autofill/content/common/autofill_messages.h

Index: components/autofill/content/common/autofill_messages.h
diff --git a/components/autofill/content/common/autofill_messages.h b/components/autofill/content/common/autofill_messages.h
index 649e05281a285c22b4c90203967f37136c55ea47..7a3e4e48191b44ce1a029093d4f74ee868394624 100644
--- a/components/autofill/content/common/autofill_messages.h
+++ b/components/autofill/content/common/autofill_messages.h
@@ -115,11 +115,6 @@ using FormsPredictionsMap =
 
 // Autofill messages sent from the browser to the renderer.
 
-// Instructs the renderer to fill the active form with the given form data.
-IPC_MESSAGE_ROUTED2(AutofillMsg_FillForm,
-                    int /* query_id */,
-                    autofill::FormData /* form */)
-
 // Instructs the renderer to preview the active form with the given form data.
 IPC_MESSAGE_ROUTED2(AutofillMsg_PreviewForm,
                     int /* query_id */,
@@ -280,11 +275,6 @@ IPC_MESSAGE_ROUTED0(AutofillHostMsg_PingAck)
 // Sent when the current form is no longer focused.
 IPC_MESSAGE_ROUTED0(AutofillHostMsg_FocusNoLongerOnForm)
 
-// Sent when a form is filled with Autofill suggestions.
-IPC_MESSAGE_ROUTED2(AutofillHostMsg_DidFillAutofillFormData,
-                    autofill::FormData /* the form */,
-                    base::TimeTicks /* timestamp */)
-
 // Send when a text field is done editing.
 IPC_MESSAGE_ROUTED0(AutofillHostMsg_DidEndTextFieldEditing)