Pass deadline to embedder idle notification callback (flutter#7444)

Author: zanderso

common/settings.h

@@ -79,7 +79,7 @@ struct Settings {
   // tasks suitable when idling. Due to this, embedders are still advised to be
   // as fast as possible in returning from this callback. Long running
   // operations in this callback do have the capability of introducing jank.
-  fml::closure idle_notification_callback;
+  std::function<void(int64_t)> idle_notification_callback;
   bool enable_software_rendering = false;
   bool skia_deterministic_rendering_on_cpu = false;
   bool verbose_logging = false;

runtime/runtime_controller.cc

@@ -25,7 +25,7 @@ RuntimeController::RuntimeController(
     fml::RefPtr<flow::SkiaUnrefQueue> p_unref_queue,
     std::string p_advisory_script_uri,
     std::string p_advisory_script_entrypoint,
-    fml::closure p_idle_notification_callback)
+    std::function<void(int64_t)> p_idle_notification_callback)
     : RuntimeController(p_client,
                         p_vm,
                         std::move(p_isolate_snapshot),
@@ -50,7 +50,7 @@ RuntimeController::RuntimeController(
     fml::RefPtr<flow::SkiaUnrefQueue> p_unref_queue,
     std::string p_advisory_script_uri,
     std::string p_advisory_script_entrypoint,
-    fml::closure idle_notification_callback,
+    std::function<void(int64_t)> idle_notification_callback,
     WindowData p_window_data)
     : client_(p_client),
       vm_(p_vm),
@@ -212,7 +212,7 @@ bool RuntimeController::NotifyIdle(int64_t deadline) {
   // Idle notifications being in isolate scope are part of the contract.
   if (idle_notification_callback_) {
     TRACE_EVENT0("flutter", "EmbedderIdleNotification");
-    idle_notification_callback_();
+    idle_notification_callback_(deadline);
   }
   return true;
 }

runtime/runtime_controller.h

@@ -37,7 +37,7 @@ class RuntimeController final : public WindowClient {
                     fml::RefPtr<flow::SkiaUnrefQueue> unref_queue,
                     std::string advisory_script_uri,
                     std::string advisory_script_entrypoint,
-                    fml::closure idle_notification_callback);
+                    std::function<void(int64_t)> idle_notification_callback);
 
   ~RuntimeController() override;
 
@@ -126,7 +126,7 @@ class RuntimeController final : public WindowClient {
   fml::RefPtr<flow::SkiaUnrefQueue> unref_queue_;
   std::string advisory_script_uri_;
   std::string advisory_script_entrypoint_;
-  fml::closure idle_notification_callback_;
+  std::function<void(int64_t)> idle_notification_callback_;
   WindowData window_data_;
   std::weak_ptr<DartIsolate> root_isolate_;
   std::pair<bool, uint32_t> root_isolate_return_code_ = {false, 0};
@@ -141,7 +141,7 @@ class RuntimeController final : public WindowClient {
                     fml::RefPtr<flow::SkiaUnrefQueue> unref_queue,
                     std::string advisory_script_uri,
                     std::string advisory_script_entrypoint,
-                    fml::closure idle_notification_callback,
+                    std::function<void(int64_t)> idle_notification_callback,
                     WindowData data);
 
   Window* GetWindowIfAvailable();