[WIP] Support PerformanceResourceTiming for Service Worker Navigation Preload

third_party/WebKit/Source/modules/serviceworkers/FetchEvent.h

Index: third_party/WebKit/Source/modules/serviceworkers/FetchEvent.h
diff --git a/third_party/WebKit/Source/modules/serviceworkers/FetchEvent.h b/third_party/WebKit/Source/modules/serviceworkers/FetchEvent.h
index c47e6844df10e3c4cfea28fbadaa6d69f656b28a..14fb995af0a9508798c9dd0cc8b31c07afe672ab 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/FetchEvent.h
+++ b/third_party/WebKit/Source/modules/serviceworkers/FetchEvent.h
@@ -5,6 +5,8 @@
 #ifndef FetchEvent_h
 #define FetchEvent_h
 
+#include <memory>
+
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseProperty.h"
 #include "modules/EventModules.h"
@@ -14,6 +16,7 @@
 #include "modules/serviceworkers/FetchEventInit.h"
 #include "modules/serviceworkers/WaitUntilObserver.h"
 #include "platform/heap/Handle.h"
+#include "platform/loader/fetch/ResourceResponse.h"
 
 namespace blink {
 
@@ -25,6 +28,7 @@ class ScriptState;
 class WebDataConsumerHandle;
 struct WebServiceWorkerError;
 class WebURLResponse;
+class WorkerGlobalScope;
 
 // A fetch event is dispatched by the client to a service worker's script
 // context. FetchRespondWithObserver can be used to notify the client about the
@@ -58,6 +62,11 @@ class MODULES_EXPORT FetchEvent final : public ExtendableEvent {
                                    std::unique_ptr<WebDataConsumerHandle>);
   void OnNavigationPreloadError(ScriptState*,
                                 std::unique_ptr<WebServiceWorkerError>);
+  void OnNavigationPreloadComplete(WorkerGlobalScope*,
+                                   double completion_time,
+                                   int64_t encoded_data_length,
+                                   int64_t encoded_body_length,
+                                   int64_t decoded_body_length);
 
   const AtomicString& InterfaceName() const override;
 
@@ -75,6 +84,7 @@ class MODULES_EXPORT FetchEvent final : public ExtendableEvent {
   Member<FetchRespondWithObserver> observer_;
   Member<Request> request_;
   Member<PreloadResponseProperty> preload_response_property_;
+  std::unique_ptr<WebURLResponse> preload_response_;
   String client_id_;
   bool is_reload_;
 };