extensions: Change auto to not deduce raw pointers.

extensions/browser/guest_view/extensions_guest_view_message_filter.cc

Index: extensions/browser/guest_view/extensions_guest_view_message_filter.cc
diff --git a/extensions/browser/guest_view/extensions_guest_view_message_filter.cc b/extensions/browser/guest_view/extensions_guest_view_message_filter.cc
index 9bf71d146ea3a0a6958d4143e8fc70939f3b36af..9dea442edf213b69d205ac770f3f5194607f7add 100644
--- a/extensions/browser/guest_view/extensions_guest_view_message_filter.cc
+++ b/extensions/browser/guest_view/extensions_guest_view_message_filter.cc
@@ -76,7 +76,7 @@ bool ExtensionsGuestViewMessageFilter::OnMessageReceived(
 
 GuestViewManager* ExtensionsGuestViewMessageFilter::
     GetOrCreateGuestViewManager() {
-  auto manager = GuestViewManager::FromBrowserContext(browser_context_);
+  auto* manager = GuestViewManager::FromBrowserContext(browser_context_);
   if (!manager) {
     manager = GuestViewManager::CreateWithDelegate(
         browser_context_,
@@ -104,10 +104,10 @@ void ExtensionsGuestViewMessageFilter::OnCreateMimeHandlerViewGuest(
     int element_instance_id,
     const gfx::Size& element_size) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  auto manager = GetOrCreateGuestViewManager();
+  auto* manager = GetOrCreateGuestViewManager();
 
-  auto rfh = RenderFrameHost::FromID(render_process_id_, render_frame_id);
-  auto embedder_web_contents = WebContents::FromRenderFrameHost(rfh);
+  auto* rfh = RenderFrameHost::FromID(render_process_id_, render_frame_id);
+  auto* embedder_web_contents = WebContents::FromRenderFrameHost(rfh);
   if (!embedder_web_contents)
     return;
 
@@ -135,15 +135,15 @@ void ExtensionsGuestViewMessageFilter::OnResizeGuest(
     int render_frame_id,
     int element_instance_id,
     const gfx::Size& new_size) {
-  auto manager = GuestViewManager::FromBrowserContext(browser_context_);
+  auto* manager = GuestViewManager::FromBrowserContext(browser_context_);
   // We should have a GuestViewManager at this point. If we don't then the
   // embedder is misbehaving.
   if (!manager)
     return;
 
-  auto guest_web_contents =
+  auto* guest_web_contents =
       manager->GetGuestByInstanceID(render_process_id_, element_instance_id);
-  auto mhvg = MimeHandlerViewGuest::FromWebContents(guest_web_contents);
+  auto* mhvg = MimeHandlerViewGuest::FromWebContents(guest_web_contents);
   if (!mhvg)
     return;
 
@@ -159,20 +159,20 @@ void ExtensionsGuestViewMessageFilter::MimeHandlerViewGuestCreatedCallback(
     int embedder_render_frame_id,
     const gfx::Size& element_size,
     WebContents* web_contents) {
-  auto guest_view = MimeHandlerViewGuest::FromWebContents(web_contents);
+  auto* guest_view = MimeHandlerViewGuest::FromWebContents(web_contents);
   if (!guest_view)
     return;
 
   int guest_instance_id = guest_view->guest_instance_id();
-  auto rfh = RenderFrameHost::FromID(embedder_render_process_id,
-                                     embedder_render_frame_id);
+  auto* rfh = RenderFrameHost::FromID(embedder_render_process_id,
+                                      embedder_render_frame_id);
   if (!rfh)
     return;
 
   base::DictionaryValue attach_params;
   attach_params.SetInteger(guest_view::kElementWidth, element_size.width());
   attach_params.SetInteger(guest_view::kElementHeight, element_size.height());
-  auto manager = GuestViewManager::FromBrowserContext(browser_context_);
+  auto* manager = GuestViewManager::FromBrowserContext(browser_context_);
   CHECK(manager);
   manager->AttachGuest(embedder_render_process_id,
                        element_instance_id,