Use AutofillDriver* in ContentAutofillDriverFactory when possible

chrome/browser/ui/autofill/chrome_autofill_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/ui/autofill/chrome_autofill_client.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 330 matching lines @@
 void ChromeAutofillClient::OnFirstUserGestureObserved() {
   ContentAutofillDriverFactory* factory =
       ContentAutofillDriverFactory::FromWebContents(web_contents());
   DCHECK(factory);
 
   for (content::RenderFrameHost* frame : web_contents()->GetAllFrames()) {
     // No need to notify non-live frames.
     // And actually they have no corresponding drivers in the factory's map.
     if (!frame->IsRenderFrameLive())
       continue;
-    ContentAutofillDriver* driver = factory->DriverForFrame(frame);
+    ContentAutofillDriver* driver =
+        static_cast<ContentAutofillDriver*>(factory->DriverForFrame(frame));
     DCHECK(driver);
     driver->NotifyFirstUserGestureObservedInTab();
   }
 }
 
 bool ChromeAutofillClient::IsContextSecure(const GURL& form_origin) {
   content::SSLStatus ssl_status;
   content::NavigationEntry* navigation_entry =
       web_contents()->GetController().GetLastCommittedEntry();
   if (!navigation_entry)
@@ skipping 38 matching lines @@
 }
 
 void ChromeAutofillClient::ShowHttpNotSecureExplanation() {
   web_contents()->OpenURL(content::OpenURLParams(
       GURL(kSecurityIndicatorHelpCenterUrl), content::Referrer(),
       WindowOpenDisposition::NEW_FOREGROUND_TAB, ui::PAGE_TRANSITION_LINK,
       false /* is_renderer_initiated */));
 }
 
 }  // namespace autofill