Discard compositor frames from unloaded web content

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 <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 1287 matching lines @@
   // For a top-level frame, there are potential security concerns associated
   // with displaying graphics from a previously loaded page after the URL in
   // the omnibar has been changed. It is unappealing to clear the page
   // immediately, but if the renderer is taking a long time to issue any
   // compositor output (possibly because of script deliberately creating this
   // situation) then we clear it after a while anyway.
   // See https://crbug.com/497588.
   if (frame_tree_node_->IsMainFrame() && GetView() &&
       !validated_params.was_within_same_page) {
     RenderWidgetHostImpl::From(GetView()->GetRenderWidgetHost())
-        ->StartNewContentRenderingTimeout();
+        ->StartNewContentRenderingTimeout(validated_params.content_source_id);
   }
 }
 
 void RenderFrameHostImpl::OnUpdateState(const PageState& state) {
   // TODO(creis): Verify the state's ISN matches the last committed FNE.
 
   // Without this check, the renderer can trick the browser into using
   // filenames it can't access in a future session restore.
   if (!CanAccessFilesOfPageState(state)) {
     bad_message::ReceivedBadMessage(
@@ skipping 2139 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, params.redirects, frame_tree_node_, is_renderer_initiated,
       params.was_within_same_page, base::TimeTicks::Now(),
       entry_id_for_data_nav, false);  // started_from_context_menu
 }
 
 }  // namespace content