Revert "Revert 3 mac autofill CLs."

components/autofill/content/renderer/autofill_agent.cc

 // 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.
 
 #include "components/autofill/content/renderer/autofill_agent.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_split.h"
@@ skipping 132 matching lines @@
   // The PageClickTracker is a RenderViewObserver, and hence will be freed when
   // the RenderView is destroyed.
   new PageClickTracker(render_view, this);
 }
 
 AutofillAgent::~AutofillAgent() {}
 
 bool AutofillAgent::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AutofillAgent, message)
+    IPC_MESSAGE_HANDLER(AutofillMsg_Ping, OnPing)
     IPC_MESSAGE_HANDLER(AutofillMsg_FillForm, OnFillForm)
     IPC_MESSAGE_HANDLER(AutofillMsg_PreviewForm, OnPreviewForm)
     IPC_MESSAGE_HANDLER(AutofillMsg_FieldTypePredictionsAvailable,
                         OnFieldTypePredictionsAvailable)
     IPC_MESSAGE_HANDLER(AutofillMsg_ClearForm, OnClearForm)
     IPC_MESSAGE_HANDLER(AutofillMsg_ClearPreviewedForm, OnClearPreviewedForm)
     IPC_MESSAGE_HANDLER(AutofillMsg_FillFieldWithValue, OnFillFieldWithValue)
     IPC_MESSAGE_HANDLER(AutofillMsg_PreviewFieldWithValue,
                         OnPreviewFieldWithValue)
     IPC_MESSAGE_HANDLER(AutofillMsg_AcceptDataListSuggestion,
@@ skipping 285 matching lines @@
 void AutofillAgent::OnFillForm(int query_id, const FormData& form) {
   if (!render_view()->GetWebView() || query_id != autofill_query_id_)
     return;
 
   was_query_node_autofilled_ = element_.isAutofilled();
   FillForm(form, element_);
   Send(new AutofillHostMsg_DidFillAutofillFormData(routing_id(),
                                                    base::TimeTicks::Now()));
 }
 
+void AutofillAgent::OnPing() {
+  Send(new AutofillHostMsg_PingAck(routing_id()));
+}
+
 void AutofillAgent::OnPreviewForm(int query_id, const FormData& form) {
   if (!render_view()->GetWebView() || query_id != autofill_query_id_)
     return;
 
   was_query_node_autofilled_ = element_.isAutofilled();
   PreviewForm(form, element_);
   Send(new AutofillHostMsg_DidPreviewAutofillFormData(routing_id()));
 }
 
 void AutofillAgent::OnClearForm() {
@@ skipping 249 matching lines @@
     // parsed form.
     if (frame && !frame->parent() && !frame->isLoading()) {
       ProcessForms(*frame);
       password_autofill_agent_->OnDynamicFormsSeen(frame);
       return;
     }
   }
 }
 
 }  // namespace autofill