Support PerformanceResourceTiming for Service Worker Navigation Preload

third_party/WebKit/Source/platform/loader/fetch/ResourceTimingInfo.h

Index: third_party/WebKit/Source/platform/loader/fetch/ResourceTimingInfo.h
diff --git a/third_party/WebKit/Source/platform/loader/fetch/ResourceTimingInfo.h b/third_party/WebKit/Source/platform/loader/fetch/ResourceTimingInfo.h
index 78fd05086edd3b9d17b12155a6197239f2e9c546..a0e009e4c93ebc5ea8447232e93ce78a85ff9751 100644
--- a/third_party/WebKit/Source/platform/loader/fetch/ResourceTimingInfo.h
+++ b/third_party/WebKit/Source/platform/loader/fetch/ResourceTimingInfo.h
@@ -104,15 +104,16 @@ class PLATFORM_EXPORT ResourceTimingInfo
       redirect.SetResourceLoadTiming(nullptr);
   }
 
+  void SetNegativeAllowed(bool negative_allowed) {

[kinuko, 2017/04/28 08:26:27]

nit: could you add a short comment about this flag? (Why this is needed, when
this is used etc, as it's probably not obvious from regular resource loading
pov)

[horo, 2017/04/28 08:48:11]

Done.

+    negative_allowed_ = negative_allowed;
+  }
+  bool NegativeAllowed() const { return negative_allowed_; }
+
  private:
   ResourceTimingInfo(const AtomicString& type,
                      const double time,
                      bool is_main_resource)
-      : type_(type),
-        initial_time_(time),
-        transfer_size_(0),
-        is_main_resource_(is_main_resource),
-        has_cross_origin_redirect_(false) {}
+      : type_(type), initial_time_(time), is_main_resource_(is_main_resource) {}
 
   AtomicString type_;
   AtomicString original_timing_allow_origin_;
@@ -121,9 +122,10 @@ class PLATFORM_EXPORT ResourceTimingInfo
   KURL initial_url_;
   ResourceResponse final_response_;
   Vector<ResourceResponse> redirect_chain_;
-  long long transfer_size_;
+  long long transfer_size_ = 0;
   bool is_main_resource_;
-  bool has_cross_origin_redirect_;
+  bool has_cross_origin_redirect_ = false;
+  bool negative_allowed_ = false;
 };
 
 struct CrossThreadResourceTimingInfoData {
@@ -142,6 +144,7 @@ struct CrossThreadResourceTimingInfoData {
   Vector<std::unique_ptr<CrossThreadResourceResponseData>> redirect_chain_;
   long long transfer_size_;
   bool is_main_resource_;
+  bool negative_allowed_;
 };
 
 template <>