Parse snippet times properly.

components/ntp_snippets/ntp_snippet_unittest.cc

 // 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/ntp_snippets/ntp_snippet.h"
 
 #include "base/json/json_reader.h"
 #include "base/values.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace ntp_snippets {
 namespace {
 
 TEST(NTPSnippetTest, FromChromeContentSuggestionsDictionary) {
   const std::string kJsonStr =
       "{"
       "  \"id\" : [\"http://localhost/foobar\"],"
       "  \"title\" : \"Foo Barred from Baz\","
       "  \"summaryText\" : \"...\","
       "  \"fullPageUrl\" : \"http://localhost/foobar\","
-      "  \"publishTime\" : {"
-      "    \"seconds\": 1466510682,"
-      "    \"nanos\": 552743000 "
-      "  },"
-      "  \"expirationTime\" : {"
-      "    \"seconds\" : 1466597082,"
-      "    \"nanos\" : 552743000 "
-      "  },"
+      "  \"publishTime\" : \"2016-06-30T11:01:37.000Z\","
+      "  \"expirationTime\" : \"2016-07-01T11:01:37.000Z\","
       "  \"publisherName\" : \"Foo News\","
       "  \"imageUrl\" : \"http://localhost/foobar.jpg\","
       "  \"ampUrl\" : \"http://localhost/amp\","
       "  \"faviconUrl\" : \"http://localhost/favicon.ico\" "
       "}";
   auto json_value = base::JSONReader::Read(kJsonStr);
   base::DictionaryValue* json_dict;
   ASSERT_TRUE(json_value->GetAsDictionary(&json_dict));
 
   auto snippet = NTPSnippet::CreateFromContentSuggestionsDictionary(*json_dict);
   ASSERT_THAT(snippet, testing::NotNull());
 
   EXPECT_EQ(snippet->id(), "http://localhost/foobar");
   EXPECT_EQ(snippet->title(), "Foo Barred from Baz");
   EXPECT_EQ(snippet->snippet(), "...");
   EXPECT_EQ(snippet->salient_image_url(), GURL("http://localhost/foobar.jpg"));
   auto unix_publish_date = snippet->publish_date() - base::Time::UnixEpoch();
   auto expiry_duration = snippet->expiry_date() - snippet->publish_date();
-  EXPECT_FLOAT_EQ(unix_publish_date.InSecondsF(), 1466510682.552743f);
+  EXPECT_FLOAT_EQ(unix_publish_date.InSecondsF(), 1467284497.000000f);
   EXPECT_FLOAT_EQ(expiry_duration.InSecondsF(), 86400.000000f);
 
   EXPECT_EQ(snippet->best_source().publisher_name, "Foo News");
   EXPECT_EQ(snippet->best_source().url, GURL("http://localhost/foobar"));
   EXPECT_EQ(snippet->best_source().amp_url, GURL("http://localhost/amp"));
 }
 
 }  // namespace
 }  // namespace ntp_snippets