Decouple RVH creation from CrossProcessFrameConnector.

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/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/devtools/render_view_devtools_agent_host.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/cross_site_transferring_request.h"
 #include "content/browser/frame_host/debug_urls.h"
 #include "content/browser/frame_host/interstitial_page_impl.h"
 #include "content/browser/frame_host/navigation_controller_impl.h"
 #include "content/browser/frame_host/navigation_entry_impl.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/frame_host/render_frame_host_factory.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/frame_host/render_frame_proxy_host.h"
+#include "content/browser/frame_host/render_widget_host_view_child_frame.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/browser/webui/web_ui_controller_factory_registry.h"
 #include "content/browser/webui/web_ui_impl.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_widget_host_iterator.h"
+#include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_ui_controller.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
 
 namespace content {
 
 RenderFrameHostManager::PendingNavigationParams::PendingNavigationParams(
     const GlobalRequestID& global_request_id,
     scoped_ptr<CrossSiteTransferringRequest> cross_site_transferring_request,
@@ skipping 122 matching lines @@
 
   // If the current render_frame_host_ isn't live, we should create it so
   // that we don't show a sad tab while the dest_render_frame_host fetches
   // its first page.  (Bug 1145340)
   if (dest_render_frame_host != render_frame_host_ &&
       !render_frame_host_->render_view_host()->IsRenderViewLive()) {
     // Note: we don't call InitRenderView here because we are navigating away
     // soon anyway, and we don't have the NavigationEntry for this host.
     delegate_->CreateRenderViewForRenderManager(
         render_frame_host_->render_view_host(), MSG_ROUTING_NONE,
-        MSG_ROUTING_NONE, NULL);
+        MSG_ROUTING_NONE, frame_tree_node_->IsMainFrame());
   }
 
   // If the renderer crashed, then try to create a new one to satisfy this
   // navigation request.
   if (!dest_render_frame_host->render_view_host()->IsRenderViewLive()) {
     // Recreate the opener chain.
     int opener_route_id = delegate_->CreateOpenerRenderViewsForRenderManager(
         dest_render_frame_host->GetSiteInstance());
     if (!InitRenderView(dest_render_frame_host->render_view_host(),
-                        opener_route_id, MSG_ROUTING_NONE))
+                        opener_route_id,
+                        MSG_ROUTING_NONE,
+                        frame_tree_node_->IsMainFrame()))
       return NULL;
 
     // Now that we've created a new renderer, be sure to hide it if it isn't
     // our primary one.  Otherwise, we might crash if we try to call Show()
     // on it later.
     if (dest_render_frame_host != render_frame_host_ &&
         dest_render_frame_host->render_view_host()->GetView()) {
       dest_render_frame_host->render_view_host()->GetView()->Hide();
     } else if (frame_tree_node_->IsMainFrame()) {
       // This is our primary renderer, notify here as we won't be calling
@@ skipping 294 matching lines @@
 
   if (!frame_tree_node_->IsMainFrame()) {
     // The RenderFrameHost being swapped out becomes the proxy for this
     // frame in its parent's process. CrossProcessFrameConnector
     // initialization only needs to happen on an initial cross-process
     // navigation, when the RenderFrame leaves the same process as its parent.
     // The same CrossProcessFrameConnector is used for subsequent cross-
     // process navigations, but it will be destroyed if the Frame is
     // navigated back to the same site instance as its parent.
     // TODO(kenrb): This will change when RenderFrameProxyHost is created.
+    // TODO(nasko): Move CrossProcessFrameConnector to be owned by
+    // RenderFrameProxyHost instead of RenderFrameHostManager once proxy
+    // support lands.
     if (!cross_process_frame_connector_) {
       cross_process_frame_connector_ =
           new CrossProcessFrameConnector(render_frame_host_.get());
     }
   }
 
   // Create the RenderFrameProxyHost that will replace the
   // RenderFrameHost which is swapping out. If one exists, ensure it is deleted
   // from the map and not leaked.
   RenderFrameProxyHostMap::iterator iter = proxy_hosts_.find(
@@ skipping 444 matching lines @@
       new_render_frame_host->GetProcess()->AddPendingView();
     } else {
       proxy = new RenderFrameProxyHost(
           new_render_frame_host->GetSiteInstance(), frame_tree_node_);
       proxy_hosts_[instance->GetId()] = proxy;
       proxy->TakeFrameHostOwnership(new_render_frame_host.Pass());
       proxy_routing_id = proxy->GetRoutingID();
     }
 
     bool success = InitRenderView(
-        render_view_host, opener_route_id, proxy_routing_id);
+        render_view_host, opener_route_id, proxy_routing_id,
+        frame_tree_node_->IsMainFrame());
     if (success && frame_tree_node_->IsMainFrame()) {
       // Don't show the main frame's view until we get a DidNavigate from it.
       render_view_host->GetView()->Hide();
     } else if (!swapped_out && pending_render_frame_host_) {
       CancelPending();
     }
     routing_id = render_view_host->GetRoutingID();
   }
 
   // Use this as our new pending RFH if it isn't swapped out.
   if (!swapped_out)
     pending_render_frame_host_ = new_render_frame_host.Pass();
 
   return routing_id;
 }
 
 bool RenderFrameHostManager::InitRenderView(RenderViewHost* render_view_host,
                                             int opener_route_id,
-                                            int proxy_routing_id) {
+                                            int proxy_routing_id,
+                                            bool for_main_frame) {
   // We may have initialized this RenderViewHost for another RenderFrameHost.
   if (render_view_host->IsRenderViewLive())
     return true;
 
   // If the pending navigation is to a WebUI and the RenderView is not in a
   // guest process, tell the RenderViewHost about any bindings it will need
   // enabled.
   if (pending_web_ui() && !render_view_host->GetProcess()->IsGuest()) {
     render_view_host->AllowBindings(pending_web_ui()->GetBindings());
   } else {
     // Ensure that we don't create an unprivileged RenderView in a WebUI-enabled
     // process unless it's swapped out.
     RenderViewHostImpl* rvh_impl =
         static_cast<RenderViewHostImpl*>(render_view_host);
     if (!rvh_impl->IsSwappedOut()) {
       CHECK(!ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
                 render_view_host->GetProcess()->GetID()));
     }
   }
 
   return delegate_->CreateRenderViewForRenderManager(
-      render_view_host, opener_route_id, proxy_routing_id,
-      cross_process_frame_connector_);
+      render_view_host, opener_route_id, proxy_routing_id, for_main_frame);
 }
 
 void RenderFrameHostManager::CommitPending() {
   // First check whether we're going to want to focus the location bar after
   // this commit.  We do this now because the navigation hasn't formally
   // committed yet, so if we've already cleared |pending_web_ui_| the call chain
   // this triggers won't be able to figure out what's going on.
   bool will_focus_location_bar = delegate_->FocusLocationBarByDefault();
 
   // We expect SwapOutOldPage to have canceled any modal dialogs and told the
@@ skipping 136 matching lines @@
 
     RenderFrameProxyHostMap::iterator iter =
         proxy_hosts_.find(old_site_instance_id);
     CHECK(iter != proxy_hosts_.end());
     iter->second->TakeFrameHostOwnership(old_render_frame_host.Pass());
 
     // If there are no active views in this SiteInstance, it means that
     // this RFH was the last active one in the SiteInstance. Now that we
     // know that all RFHs are swapped out, we can delete all the RFHs and RVHs
     // in this SiteInstance.
-    if (!active_view_count)
+    if (!active_view_count) {
       ShutdownRenderFrameHostsInSiteInstance(old_site_instance_id);
+    } else {
+      // If this is a subframe, it should have a CrossProcessFrameConnector
+      // created already and we just need to link it to the proper view in the
+      // new process.
+      if (!is_main_frame) {
+        RenderWidgetHostView* rwhv =
+            render_frame_host_->render_view_host()->GetView();
+        RenderWidgetHostViewChildFrame* rwhv_child =
+            static_cast<RenderWidgetHostViewChildFrame*>(rwhv);
+        cross_process_frame_connector_->set_view(rwhv_child);
+      }
+    }
   }
 }
 
 void RenderFrameHostManager::ShutdownRenderFrameHostsInSiteInstance(
     int32 site_instance_id) {
   // First remove any swapped out RFH for this SiteInstance from our own list.
   ClearProxiesInSiteInstance(site_instance_id, frame_tree_node_);
 
   // Use the safe RenderWidgetHost iterator for now to find all RenderViewHosts
   // in the SiteInstance, then tell their respective FrameTrees to remove all
@@ skipping 271 matching lines @@
     SiteInstance* instance) const {
   RenderFrameProxyHostMap::const_iterator iter =
       proxy_hosts_.find(instance->GetId());
   if (iter != proxy_hosts_.end())
     return iter->second;
 
   return NULL;
 }
 
 }  // namespace content