Destroy the old RenderWidgetHostView when swapping out a main frame.

content/browser/frame_host/render_frame_host_impl.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_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 1384 matching lines @@
     Send(new FrameMsg_SwapOut(routing_id_, proxy->GetRoutingID(), is_loading,
                               replication_state));
   }
 
   if (web_ui())
     web_ui()->RenderFrameHostSwappingOut();
 
   // TODO(nasko): If the frame is not live, the RFH should just be deleted by
   // simulating the receipt of swap out ack.
   is_waiting_for_swapout_ack_ = true;
-  if (frame_tree_node_->IsMainFrame())
-    render_view_host_->set_is_active(false);
 }
 
 void RenderFrameHostImpl::OnBeforeUnloadACK(
     bool proceed,
     const base::TimeTicks& renderer_before_unload_start_time,
     const base::TimeTicks& renderer_before_unload_end_time) {
   TRACE_EVENT_ASYNC_END1("navigation", "RenderFrameHostImpl BeforeUnload", this,
                          "FrameTreeNode id",
                          frame_tree_node_->frame_tree_node_id());
   DCHECK(!GetParent());
@@ skipping 146 matching lines @@
   // Ignore spurious swap out ack.
   if (!is_waiting_for_swapout_ack_)
     return;
 
   TRACE_EVENT_ASYNC_END0("navigation", "RenderFrameHostImpl::SwapOut", this);
   if (swapout_event_monitor_timeout_)
     swapout_event_monitor_timeout_->Stop();
 
   ClearAllWebUI();
 
-  // If this is a main frame RFH that's about to be deleted, update its RVH's
-  // swapped-out state here. https://crbug.com/505887
-  if (frame_tree_node_->IsMainFrame()) {
-    render_view_host_->set_is_active(false);
-    render_view_host_->set_is_swapped_out(true);
-  }
-
   bool deleted =
       frame_tree_node_->render_manager()->DeleteFromPendingList(this);
   CHECK(deleted);
 }
 
 void RenderFrameHostImpl::DisableSwapOutTimerForTesting() {
   swapout_event_monitor_timeout_.reset();
 }
 
 void RenderFrameHostImpl::OnRendererConnect(
@@ skipping 1741 matching lines @@
   // There is no pending NavigationEntry in these cases, so pass 0 as the
   // pending_nav_entry_id. If the previous handle was a prematurely aborted
   // navigation loaded via LoadDataWithBaseURL, propagate the entry id.
   return NavigationHandleImpl::Create(
       params.url, frame_tree_node_, is_renderer_initiated,
       params.was_within_same_page, params.is_srcdoc, base::TimeTicks::Now(),
       entry_id_for_data_nav, false);  // started_from_context_menu
 }
 
 }  // namespace content