Test

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 707d7a759f40516c7fa507bdf8d0e30970fd3342..443ad4f3addab32ac23c4b51ff7af61d0bf462be 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -1758,6 +1758,22 @@ bool LayerTreeHostImpl::DrawLayers(FrameData* frame) {
     }
   }
 
+  std::vector<SharedBitmap*> shared_bitmaps_to_register =
+      resource_provider_->TakeSharedBitmapsToRegister();
+
+  for (SharedBitmap* shared_bitmap : shared_bitmaps_to_register) {
+    base::SharedMemory* shared_memory = shared_bitmap->GetSharedMemory();
+    if (shared_memory && shared_memory->handle().IsValid()) {
+      metadata.shared_bitmaps_to_register.push_back(
+          {shared_bitmap->id(),
+           shared_memory->handle().Duplicate(),
+           shared_memory->mapped_size()});
+      DCHECK(shared_memory->handle().IsValid());
+      shared_memory->Close();
+      DCHECK(!shared_memory->handle().IsValid());
+    }
+  }
+
   DCHECK_LE(BeginFrameArgs::kStartingFrameNumber,
             frame->begin_frame_ack.sequence_number);
   metadata.begin_frame_ack = frame->begin_frame_ack;
@@ -1774,6 +1790,7 @@ bool LayerTreeHostImpl::DrawLayers(FrameData* frame) {
     layer_tree_frame_sink_->SetLocalSurfaceId(
         active_tree()->local_surface_id());
   }
+
   layer_tree_frame_sink_->SubmitCompositorFrame(std::move(compositor_frame));
 
   // Clears the list of swap promises after calling DidSwap on each of them to