PlzNavigate: Create the speculative renderer earlier.

content/browser/frame_host/render_frame_host_manager.cc

 // Copyright 2013 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 "content/browser/frame_host/render_frame_host_manager.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 683 matching lines @@
     }
   }
   return false;
 }
 
 void RenderFrameHostManager::ResetProxyHosts() {
   STLDeleteValues(&proxy_hosts_);
 }
 
 // PlzNavigate
-void RenderFrameHostManager::BeginNavigation(const NavigationRequest& request) {
+void RenderFrameHostManager::DidCreateNavigationRequest(
+    const NavigationRequest& request) {
   CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableBrowserSideNavigation));
   // Clean up any state in case there's an ongoing navigation.
   // TODO(carlosk): remove this cleanup here once we properly cancel ongoing
   // navigations.
   CleanUpNavigation();
 
   RenderFrameHostImpl* dest_rfh = GetFrameHostForNavigation(request);
   DCHECK(dest_rfh);
 }
@@ skipping 1468 matching lines @@
 void RenderFrameHostManager::DeleteRenderFrameProxyHost(
     SiteInstance* instance) {
   RenderFrameProxyHostMap::iterator iter = proxy_hosts_.find(instance->GetId());
   if (iter != proxy_hosts_.end()) {
     delete iter->second;
     proxy_hosts_.erase(iter);
   }
 }
 
 }  // namespace content