Add a new command buffer function glScheduleCALayerInUseQueryCHROMIUM.

gpu/ipc/service/image_transport_surface_overlay_mac.mm

Index: gpu/ipc/service/image_transport_surface_overlay_mac.mm
diff --git a/gpu/ipc/service/image_transport_surface_overlay_mac.mm b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
index 1ced5d09fe883c99e9e6531bd40af9c9056e4e24..37641575e714bb43de0e93320ca5a36876e0f161 100644
--- a/gpu/ipc/service/image_transport_surface_overlay_mac.mm
+++ b/gpu/ipc/service/image_transport_surface_overlay_mac.mm
@@ -158,6 +158,16 @@ void ImageTransportSurfaceOverlayMac::SendAcceleratedSurfaceBuffersSwapped(
   params.scale_factor = scale_factor;
   params.latency_info = std::move(latency_info);
   params.result = gfx::SwapResult::SWAP_ACK;
+
+  for (auto& query : io_surface_in_use_queries_) {
+    uint32_t texture = query.texture;
+    bool in_use =
+        query.io_surface.get() && IOSurfaceIsInUse(query.io_surface.get());
+    auto response = std::make_pair(texture, in_use);
+    params.in_use_queries.push_back(response);
+  }
+  io_surface_in_use_queries_.clear();
+
   stub_->SendSwapBuffersCompleted(params);
 }
 
@@ -326,6 +336,20 @@ bool ImageTransportSurfaceOverlayMac::ScheduleCALayer(
                         edge_aa_mask, opacity, filter);
 }
 
+void ImageTransportSurfaceOverlayMac::ScheduleCALayerInUseQuery(
+    std::vector<CALayerInUseQuery> queries) {
+  for (auto& query : queries) {
+    IOSurfaceInUseQuery io_surface_query;
+    io_surface_query.texture = query.texture;
+    if (query.image) {
+      gl::GLImageIOSurface* io_surface_image =
+          static_cast<gl::GLImageIOSurface*>(query.image);
+      io_surface_query.io_surface = io_surface_image->io_surface();
+    }
+    io_surface_in_use_queries_.push_back(std::move(io_surface_query));
+  }
+}
+
 bool ImageTransportSurfaceOverlayMac::IsSurfaceless() const {
   return true;
 }
@@ -361,4 +385,13 @@ void ImageTransportSurfaceOverlayMac::OnGpuSwitched() {
       FROM_HERE, base::Bind(&IOSurfaceContextNoOp, context_on_new_gpu));
 }
 
+ImageTransportSurfaceOverlayMac::IOSurfaceInUseQuery::IOSurfaceInUseQuery() =
+    default;
+ImageTransportSurfaceOverlayMac::IOSurfaceInUseQuery::IOSurfaceInUseQuery(
+    IOSurfaceInUseQuery&) = default;
+ImageTransportSurfaceOverlayMac::IOSurfaceInUseQuery::IOSurfaceInUseQuery(
+    IOSurfaceInUseQuery&&) = default;
+ImageTransportSurfaceOverlayMac::IOSurfaceInUseQuery::~IOSurfaceInUseQuery() =
+    default;
+
 }  // namespace gpu