Remove some RenderProcessHost::IsGuest call sites

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index f154585b299daa0eb03641e17ba460ee0c16b5bf..45c9a9ae022785923bcb47f2051f883f62953b53 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -1333,7 +1333,7 @@ void WebContentsImpl::CreateNewWindow(
   // script-related windows), by passing in the current SiteInstance.  However,
   // if the opener is being suppressed (in a non-guest), we create a new
   // SiteInstance in its own BrowsingInstance.
-  bool is_guest = GetRenderProcessHost()->IsGuest();
+  bool is_guest = BrowserPluginGuest::IsGuest(this);
 
   // If the opener is to be suppressed, the new window can be in any process.
   // Since routing ids are process specific, we must not have one passed in
@@ -1602,7 +1602,7 @@ WebContentsImpl* WebContentsImpl::GetCreatedWindow(int route_id) {
   RemoveDestructionObserver(new_contents);
 
   // Don't initialize the guest WebContents immediately.
-  if (new_contents->GetRenderProcessHost()->IsGuest())
+  if (BrowserPluginGuest::IsGuest(new_contents))
     return new_contents;
 
   if (!new_contents->GetRenderProcessHost()->HasConnection() ||