Begin abstracting sending of IPC from autofill core code.

components/autofill/core/browser/autofill_manager.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/core/browser/autofill_manager.h"
 
 #include <stddef.h>
 
 #include <limits>
 #include <map>
@@ skipping 516 matching lines @@
       if ((*iter) == field) {
         data_model->FillFormField(
             *autofill_field, variant, app_locale_, &(*iter));
         // Mark the cached field as autofilled, so that we can detect when a
         // user edits an autofilled field (for metrics).
         autofill_field->is_autofilled = true;
         break;
       }
     }
 
-    host->Send(new AutofillMsg_FormDataFilled(host->GetRoutingID(), query_id,
-                                              result));
+    driver_->SendFormDataToRenderer(query_id, result);
     return;
   }
 
   // Cache the field type for the field from which the user initiated autofill.
   FieldTypeGroup initiating_group_type =
       AutofillType(autofill_field->type()).group();
   DCHECK_EQ(form_structure->field_count(), form.fields.size());
   for (size_t i = 0; i < form_structure->field_count(); ++i) {
     if (form_structure->field(i)->section() != autofill_field->section())
       continue;
@@ skipping 23 matching lines @@
       form_structure->field(i)->is_autofilled = true;
     }
   }
 
   autofilled_form_signatures_.push_front(form_structure->FormSignature());
   // Only remember the last few forms that we've seen, both to avoid false
   // positives and to avoid wasting memory.
   if (autofilled_form_signatures_.size() > kMaxRecentFormSignaturesToRemember)
     autofilled_form_signatures_.pop_back();
 
-  host->Send(new AutofillMsg_FormDataFilled(
-      host->GetRoutingID(), query_id, result));
+  driver_->SendFormDataToRenderer(query_id, result);
 }
 
 void AutofillManager::OnShowAutofillDialog() {
   manager_delegate_->ShowAutofillSettings();
 }
 
 void AutofillManager::OnDidPreviewAutofillFormData() {
   if (test_delegate_)
     test_delegate_->DidPreviewFormData();
 }
@@ skipping 354 matching lines @@
 bool AutofillManager::GetHost(RenderViewHost** host) const {
   if (!IsAutofillEnabled())
     return false;
 
   // No autofill data to return if the profiles are empty.
   if (personal_data_->GetProfiles().empty() &&
       personal_data_->GetCreditCards().empty()) {
     return false;
   }
 
-  *host = driver_->GetWebContents()->GetRenderViewHost();
-  if (!*host)
+  if (!driver_->RendererIsAvailable())
     return false;
 
+  *host = driver_->GetWebContents()->GetRenderViewHost();
   return true;
 }
 
 bool AutofillManager::GetProfileOrCreditCard(
     int unique_id,
     const AutofillDataModel** data_model,
     size_t* variant) const {
   // Unpack the |unique_id| into component parts.
   GUIDPair credit_card_guid;
   GUIDPair profile_guid;
@@ skipping 280 matching lines @@
 
 void AutofillManager::UpdateInitialInteractionTimestamp(
     const TimeTicks& interaction_timestamp) {
   if (initial_interaction_timestamp_.is_null() ||
       interaction_timestamp < initial_interaction_timestamp_) {
     initial_interaction_timestamp_ = interaction_timestamp;
   }
 }
 
 }  // namespace autofill