Add ref-count on RenderViewHost for each new RenderFrameProxyHost.

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 580 matching lines @@
     // Tell the old RenderFrameHost to swap out, with no proxy to replace it.
     old_render_frame_host->SwapOut(NULL, true);
     MoveToPendingDeleteHosts(old_render_frame_host.Pass());
     return;
   }
 
   // Otherwise there are active views and we need a proxy for the old RFH.
   // (There should not be one yet.)
   CHECK(!GetRenderFrameProxyHost(old_render_frame_host->GetSiteInstance()));
   RenderFrameProxyHost* proxy = new RenderFrameProxyHost(
-      old_render_frame_host->GetSiteInstance(), frame_tree_node_);
+      old_render_frame_host->GetSiteInstance(),
+      old_render_frame_host->render_view_host(),
+      frame_tree_node_);
   CHECK(proxy_hosts_.insert(std::make_pair(old_site_instance_id, proxy)).second)
       << "Inserting a duplicate item.";
 
   // Tell the old RenderFrameHost to swap out and be replaced by the proxy.
   old_render_frame_host->SwapOut(proxy, true);
 
   // SwapOut creates a RenderFrameProxy, so set the proxy to be initialized.
   proxy->set_render_frame_proxy_created(true);
 
   bool is_main_frame = frame_tree_node_->IsMainFrame();
@@ skipping 22 matching lines @@
 
   // If the SiteInstance for the pending RFH is being used by others don't
   // delete the RFH. Just swap it out and it can be reused at a later point.
   SiteInstanceImpl* site_instance = render_frame_host->GetSiteInstance();
   if (site_instance->HasSite() && site_instance->active_frame_count() > 1) {
     // Any currently suspended navigations are no longer needed.
     render_frame_host->CancelSuspendedNavigations();
 
     CHECK(!GetRenderFrameProxyHost(site_instance));
     RenderFrameProxyHost* proxy =
-        new RenderFrameProxyHost(site_instance, frame_tree_node_);
+        new RenderFrameProxyHost(site_instance,
+                                 render_frame_host->render_view_host(),
+                                 frame_tree_node_);
     proxy_hosts_[site_instance->GetId()] = proxy;
 
     // Check if the RenderFrameHost is already swapped out, to avoid swapping it
     // out again.
     if (!render_frame_host->is_swapped_out())
       render_frame_host->SwapOut(proxy, false);
 
     if (frame_tree_node_->IsMainFrame())
       proxy->TakeFrameHostOwnership(render_frame_host.Pass());
   } else {
@@ skipping 853 matching lines @@
     RenderViewHostImpl* render_view_host =
         new_render_frame_host->render_view_host();
     int proxy_routing_id = MSG_ROUTING_NONE;
 
     // Prevent the process from exiting while we're trying to navigate in it.
     // Otherwise, if the new RFH is swapped out already, store it.
     if (!swapped_out) {
       new_render_frame_host->GetProcess()->AddPendingView();
     } else {
       proxy = new RenderFrameProxyHost(
-          new_render_frame_host->GetSiteInstance(), frame_tree_node_);
+          new_render_frame_host->GetSiteInstance(),
+          new_render_frame_host->render_view_host(), frame_tree_node_);
       proxy_hosts_[instance->GetId()] = proxy;
       proxy_routing_id = proxy->GetRoutingID();
       proxy->TakeFrameHostOwnership(new_render_frame_host.Pass());
     }
 
     success =
         InitRenderView(render_view_host, opener_route_id, proxy_routing_id,
                        !!(flags & CREATE_RF_FOR_MAIN_FRAME_NAVIGATION));
     if (success) {
       // Remember that InitRenderView also created the RenderFrameProxy.
@@ skipping 31 matching lines @@
   // A RenderFrameProxyHost should never be created in the same SiteInstance as
   // the current RFH.
   CHECK(instance);
   CHECK_NE(instance, render_frame_host_->GetSiteInstance());
 
   RenderFrameProxyHost* proxy = GetRenderFrameProxyHost(instance);
   if (proxy && proxy->is_render_frame_proxy_live())
     return proxy->GetRoutingID();
 
   if (!proxy) {
-    proxy = new RenderFrameProxyHost(instance, frame_tree_node_);
+    proxy = new RenderFrameProxyHost(
+        instance, frame_tree_node_->frame_tree()->GetRenderViewHost(instance),
+        frame_tree_node_);
     proxy_hosts_[instance->GetId()] = proxy;
   }
   proxy->InitRenderFrameProxy();
   return proxy->GetRoutingID();
 }
 
 void RenderFrameHostManager::CreateProxiesForChildFrame(FrameTreeNode* child) {
   for (const auto& pair : proxy_hosts_) {
     child->render_manager()->CreateRenderFrameProxy(
         pair.second->GetSiteInstance());
@@ skipping 528 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