PrerenderManager: No longer expose weak pointers.

chrome/browser/ui/webui/net_internals/net_internals_ui.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/ui/webui/net_internals/net_internals_ui.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 222 matching lines @@
       bool success,
       const net::CertificateList& onc_trusted_certificates);
 #endif
 
  private:
   class IOThreadImpl;
 
   // This is the "real" message handler, which lives on the IO thread.
   scoped_refptr<IOThreadImpl> proxy_;
 
-  base::WeakPtr<prerender::PrerenderManager> prerender_manager_;
-
   DISALLOW_COPY_AND_ASSIGN(NetInternalsMessageHandler);
 };
 
 // This class is the "real" message handler. It is allocated and destroyed on
 // the UI thread.  With the exception of OnAddEntry, OnWebUIDeleted, and
 // SendJavascriptCommand, its methods are all expected to be called from the IO
 // thread.  OnAddEntry and SendJavascriptCommand can be called from any thread,
 // and OnWebUIDeleted can only be called from the UI thread.
 class NetInternalsMessageHandler::IOThreadImpl
     : public base::RefCountedThreadSafe<
@@ skipping 148 matching lines @@
 
   proxy_ = new IOThreadImpl(this->AsWeakPtr(), g_browser_process->io_thread(),
                             profile->GetRequestContext());
   proxy_->AddRequestContextGetter(
       content::BrowserContext::GetDefaultStoragePartition(profile)->
           GetMediaURLRequestContext());
 #if defined(ENABLE_EXTENSIONS)
   proxy_->AddRequestContextGetter(profile->GetRequestContextForExtensions());
 #endif
 
-  prerender::PrerenderManager* prerender_manager =
-      prerender::PrerenderManagerFactory::GetForProfile(profile);
-  if (prerender_manager) {
-    prerender_manager_ = prerender_manager->AsWeakPtr();
-  } else {
-    prerender_manager_ = base::WeakPtr<prerender::PrerenderManager>();
-  }
-
   web_ui()->RegisterMessageCallback(
       "notifyReady",
       base::Bind(&NetInternalsMessageHandler::OnRendererReady,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "getNetInfo",
       base::Bind(&IOThreadImpl::CallbackHelper,
                  &IOThreadImpl::OnGetNetInfo, proxy_));
   web_ui()->RegisterMessageCallback(
       "reloadProxySettings",
@@ skipping 104 matching lines @@
                   BrowsingDataRemover::REMOVE_CACHE,
                   BrowsingDataHelper::UNPROTECTED_WEB);
   // BrowsingDataRemover deletes itself.
 }
 
 void NetInternalsMessageHandler::OnGetPrerenderInfo(
     const base::ListValue* /* list */) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   std::unique_ptr<base::DictionaryValue> value;
-  if (prerender_manager_) {
-    value = prerender_manager_->GetAsValue();
+
+  prerender::PrerenderManager* prerender_manager =
+      prerender::PrerenderManagerFactory::GetForProfile(
+          Profile::FromWebUI(web_ui()));
+  if (prerender_manager) {
+    value = prerender_manager->GetAsValue();
   } else {
     value.reset(new base::DictionaryValue());
     value->SetBoolean("enabled", false);
     value->SetBoolean("omnibox_enabled", false);
   }
   SendJavascriptCommand("receivedPrerenderInfo", std::move(value));
 }
 
 void NetInternalsMessageHandler::OnGetHistoricNetworkStats(
     const base::ListValue* list) {
@@ skipping 618 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 
 NetInternalsUI::NetInternalsUI(content::WebUI* web_ui)
     : WebUIController(web_ui) {
   web_ui->AddMessageHandler(new NetInternalsMessageHandler());
 
   // Set up the chrome://net-internals/ source.
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, CreateNetInternalsHTMLSource());
 }