first-paint and first-contentful paint

third_party/WebKit/Source/core/timing/PerformancePaintTiming.h

Index: third_party/WebKit/Source/core/timing/PerformancePaintTiming.h
diff --git a/third_party/WebKit/Source/core/timing/PerformancePaintTiming.h b/third_party/WebKit/Source/core/timing/PerformancePaintTiming.h
new file mode 100644
index 0000000000000000000000000000000000000000..8406606804dc28755bccf10700a01e8ef4695d77
--- /dev/null
+++ b/third_party/WebKit/Source/core/timing/PerformancePaintTiming.h
@@ -0,0 +1,29 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PerformancePaintTiming_h
+#define PerformancePaintTiming_h
+
+#include "core/CoreExport.h"
+#include "core/timing/PerformanceEntry.h"
+
+namespace blink {
+
+class CORE_EXPORT PerformancePaintTiming final : public PerformanceEntry {
+  DEFINE_WRAPPERTYPEINFO();
+
+ public:
+  enum class PaintType { FirstPaint, FirstContentfulPaint };
+
+  PerformancePaintTiming(PaintType, double startTime);
+  ~PerformancePaintTiming() override;
+
+  static String fromPaintTypeToString(PaintType);
+
+ protected:
+  void buildJSONValue(V8ObjectBuilder&) const override;
+};
+}  // namespace blink
+
+#endif  // PerformancePaintTiming_h