Use AutofillDriver* in ContentAutofillDriverFactory when possible

chrome/browser/password_manager/chrome_password_manager_client.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 "chrome/browser/password_manager/chrome_password_manager_client.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 436 matching lines @@
 const password_manager::PasswordManager*
 ChromePasswordManagerClient::GetPasswordManager() const {
   return &password_manager_;
 }
 
 autofill::AutofillManager*
 ChromePasswordManagerClient::GetAutofillManagerForMainFrame() {
   autofill::ContentAutofillDriverFactory* factory =
       autofill::ContentAutofillDriverFactory::FromWebContents(web_contents());
   return factory
-             ? factory->DriverForFrame(web_contents()->GetMainFrame())
+             ? static_cast<autofill::ContentAutofillDriver*>(
+                   factory->DriverForFrame(web_contents()->GetMainFrame()))
                    ->autofill_manager()
              : nullptr;
 }
 
 void ChromePasswordManagerClient::SetTestObserver(
     autofill::PasswordGenerationPopupObserver* observer) {
   observer_ = observer;
 }
 
 void ChromePasswordManagerClient::DidStartNavigation(
@@ skipping 145 matching lines @@
       ChromePasswordManagerClient::FromWebContents(web_contents);
 
   // Try to bind to the driver, but if driver is not available for this render
   // frame host, the request will be just dropped. This will cause the message
   // pipe to be closed, which will raise a connection error on the peer side.
   if (!instance)
     return;
 
   instance->credential_manager_impl_.BindRequest(std::move(request));
 }