DelegatedFrameHost should not return old resources to renderer

content/browser/renderer_host/delegated_frame_host.cc

 // Copyright 2014 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/renderer_host/delegated_frame_host.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 420 matching lines @@
 
   if (compositor_frame_sink_id != last_compositor_frame_sink_id_) {
     // Resource ids are scoped by the output surface.
     // If the originating output surface doesn't match the last one, it
     // indicates the renderer's output surface may have been recreated, in which
     // case we should recreate the DelegatedRendererLayer, to avoid matching
     // resources from the old one with resources from the new one which would
     // have the same id. Changing the layer to showing painted content destroys
     // the DelegatedRendererLayer.
     EvictDelegatedFrame();
-
     surface_factory_->Reset();
-    if (!surface_returned_resources_.empty()) {
-      SendReclaimCompositorResources(last_compositor_frame_sink_id_,
-                                     false /* is_swap_ack */);
-    }
+    surface_returned_resources_.clear();
     last_compositor_frame_sink_id_ = compositor_frame_sink_id;
   }
   bool skip_frame = false;
   pending_delegated_ack_count_++;
 
   background_color_ = frame.metadata.root_background_color;
 
   bool did_send_ack_callback = false;
   if (frame_size.IsEmpty()) {
     DCHECK(frame.resource_list.empty());
@@ skipping 411 matching lines @@
         std::move(request));
   }
 }
 
 void DelegatedFrameHost::UnlockResources() {
   DCHECK(local_surface_id_.is_valid());
   delegated_frame_evictor_->UnlockFrame();
 }
 
 }  // namespace content