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

components/autofill/content/browser/content_autofill_driver_factory.cc

 // Copyright 2014 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.
 
 #include "components/autofill/content/browser/content_autofill_driver_factory.h"
 
 #include <vector>
 
 #include "base/memory/ptr_util.h"
 #include "base/stl_util.h"
 #include "components/autofill/content/browser/content_autofill_driver.h"
 #include "components/autofill/core/browser/autofill_client.h"
 #include "components/autofill/core/browser/autofill_manager.h"
 #include "components/autofill/core/browser/form_structure.h"
 #include "components/autofill/core/common/autofill_switches.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
-#include "ipc/ipc_message_macros.h"
 
 namespace autofill {
 
 const char ContentAutofillDriverFactory::
     kContentAutofillDriverFactoryWebContentsUserDataKey[] =
         "web_contents_autofill_driver_factory";
 
 ContentAutofillDriverFactory::~ContentAutofillDriverFactory() {}
 
 // static
@@ skipping 58 matching lines @@
       client_(client),
       app_locale_(app_locale),
       enable_download_manager_(enable_download_manager) {}
 
 ContentAutofillDriver* ContentAutofillDriverFactory::DriverForFrame(
     content::RenderFrameHost* render_frame_host) {
   auto mapping = frame_driver_map_.find(render_frame_host);
   return mapping == frame_driver_map_.end() ? nullptr : mapping->second.get();
 }
 
-bool ContentAutofillDriverFactory::OnMessageReceived(
-    const IPC::Message& message,
-    content::RenderFrameHost* render_frame_host) {
-  return frame_driver_map_[render_frame_host]->HandleMessage(message);
-}
-
 void ContentAutofillDriverFactory::RenderFrameCreated(
     content::RenderFrameHost* render_frame_host) {
   auto insertion_result =
       frame_driver_map_.insert(std::make_pair(render_frame_host, nullptr));
   // This is called twice for the main frame.
   if (insertion_result.second) {  // This was the first time.
     insertion_result.first->second = base::WrapUnique(new ContentAutofillDriver(
         render_frame_host, client_, app_locale_, enable_download_manager_));
   }
 }
@@ skipping 14 matching lines @@
     content::NavigationHandle* navigation_handle) {
   if (navigation_handle->HasCommitted())
     client_->HideAutofillPopup();
 }
 
 void ContentAutofillDriverFactory::WasHidden() {
   client_->HideAutofillPopup();
 }
 
 }  // namespace autofill