Remove some RenderProcessHost::IsGuest call sites

chrome/browser/prerender/prerender_link_manager.cc

 // Copyright (c) 2012 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/prerender/prerender_link_manager.h"
 
 #include <functional>
 #include <limits>
 #include <set>
 #include <string>
 #include <utility>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
+#include "chrome/browser/guest_view/guest_view_base.h"
 #include "chrome/browser/prerender/prerender_contents.h"
 #include "chrome/browser/prerender/prerender_handle.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "chrome/browser/prerender/prerender_manager_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/prerender_messages.h"
 #include "chrome/common/prerender_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/session_storage_namespace.h"
@@ skipping 132 matching lines @@
 void PrerenderLinkManager::OnAddPrerender(int launcher_child_id,
                                           int prerender_id,
                                           const GURL& url,
                                           uint32 rel_types,
                                           const content::Referrer& referrer,
                                           const gfx::Size& size,
                                           int render_view_route_id) {
   DCHECK_EQ(static_cast<LinkPrerender*>(NULL),
             FindByLauncherChildIdAndPrerenderId(launcher_child_id,
                                                 prerender_id));
-  content::RenderProcessHost* rph =
-      content::RenderProcessHost::FromID(launcher_child_id);
+  content::RenderViewHost* rvh =
+      content::RenderViewHost::FromID(launcher_child_id, render_view_route_id);
+  content::WebContents* web_contents =
+      rvh ? content::WebContents::FromRenderViewHost(rvh) : NULL;
   // Guests inside <webview> do not support cross-process navigation and so we
   // do not allow guests to prerender content.
-  if (rph && rph->IsGuest())
+  if (GuestViewBase::IsGuest(web_contents))
     return;
 
   // Check if the launcher is itself an unswapped prerender.
   PrerenderContents* prerender_contents =
       manager_->GetPrerenderContentsForRoute(launcher_child_id,
                                              render_view_route_id);
   if (prerender_contents &&
       prerender_contents->final_status() != FINAL_STATUS_MAX) {
     // The launcher is a prerender about to be destroyed asynchronously, but
     // its AddLinkRelPrerender message raced with shutdown. Ignore it.
@@ skipping 348 matching lines @@
   DCHECK(!prerender->is_match_complete_replacement);
   prerender->is_match_complete_replacement = true;
   Send(prerender->launcher_child_id,
        new PrerenderMsg_OnPrerenderStop(prerender->prerender_id));
   // Do not call RemovePrerender here. The replacement needs to stay connected
   // to the HTMLLinkElement in the renderer so it notices renderer-triggered
   // cancelations.
 }
 
 }  // namespace prerender