extensions: Change auto to not deduce raw pointers.

extensions/browser/extension_navigation_throttle.cc

 // Copyright 2016 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 "extensions/browser/extension_navigation_throttle.h"
 
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 26 matching lines @@
     return content::NavigationThrottle::PROCEED;
 
   // The subframe which is navigated needs to have all of its ancestors be
   // at the same origin, otherwise the resource needs to be explicitly listed
   // in web_accessible_resources.
   // Since the RenderFrameHost is not known until navigation has committed,
   // we can't get it from NavigationHandle. However, this code only cares about
   // the ancestor chain, so find the current RenderFrameHost and use it to
   // traverse up to the main frame.
   content::RenderFrameHost* navigating_frame = nullptr;
-  for (auto frame : navigation_handle()->GetWebContents()->GetAllFrames()) {
+  for (auto* frame : navigation_handle()->GetWebContents()->GetAllFrames()) {
     if (frame->GetFrameTreeNodeId() ==
         navigation_handle()->GetFrameTreeNodeId()) {
       navigating_frame = frame;
       break;
     }
   }
   DCHECK(navigating_frame);
 
   // Traverse the chain of parent frames, checking if they are the same origin
   // as the URL of this navigation.
@@ skipping 31 matching lines @@
 
   if (WebAccessibleResourcesInfo::IsResourceWebAccessible(extension,
                                                           resource_path)) {
     return content::NavigationThrottle::PROCEED;
   }
 
   return content::NavigationThrottle::BLOCK_REQUEST;
 }
 
 }  // namespace extensions