Changing the TimeDeltas in DRPPageLoadTiming to Optional

components/data_reduction_proxy/core/common/data_reduction_proxy_page_load_timing.cc

Index: components/data_reduction_proxy/core/common/data_reduction_proxy_page_load_timing.cc
diff --git a/components/data_reduction_proxy/core/common/data_reduction_proxy_page_load_timing.cc b/components/data_reduction_proxy/core/common/data_reduction_proxy_page_load_timing.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fdccecb0a1abded0581fa42d962428d5dc202a1c
--- /dev/null
+++ b/components/data_reduction_proxy/core/common/data_reduction_proxy_page_load_timing.cc
@@ -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.
+
+#include "components/data_reduction_proxy/core/common/data_reduction_proxy_page_load_timing.h"
+
+namespace data_reduction_proxy {
+
+DataReductionProxyPageLoadTiming::DataReductionProxyPageLoadTiming(
+    const base::Time& navigation_start,
+    const base::Optional<base::TimeDelta>& response_start,
+    const base::Optional<base::TimeDelta>& load_event_start,
+    const base::Optional<base::TimeDelta>& first_image_paint,
+    const base::Optional<base::TimeDelta>& first_contentful_paint)
+    : navigation_start(navigation_start),
+      response_start(response_start),
+      load_event_start(load_event_start),
+      first_image_paint(first_image_paint),
+      first_contentful_paint(first_contentful_paint) {}
+
+DataReductionProxyPageLoadTiming::DataReductionProxyPageLoadTiming(
+    const DataReductionProxyPageLoadTiming& other)
+    : navigation_start(other.navigation_start),
+      response_start(other.response_start),
+      load_event_start(other.load_event_start),
+      first_image_paint(other.first_image_paint),
+      first_contentful_paint(other.first_contentful_paint) {}
+
+}  // namespace data_reduction_proxy