Parse snippet times properly.

components/ntp_snippets/ntp_snippet.cc

 // Copyright 2015 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/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "components/ntp_snippets/content_suggestion.h"
 #include "components/ntp_snippets/content_suggestion_category.h"
 #include "components/ntp_snippets/content_suggestions_provider_type.h"
 #include "components/ntp_snippets/proto/ntp_snippets.pb.h"
 
 namespace {
 
 // dict.Get() specialization for base::Time values
 bool GetTimeValue(const base::DictionaryValue& dict,
                   const std::string& key,
                   base::Time* time) {
-  const base::DictionaryValue* time_value;
-  int seconds = 0, nanos = 0;
-  if (!(dict.GetDictionary(key, &time_value) &&
-        time_value->GetInteger("seconds", &seconds) &&
-        time_value->GetInteger("nanos", &nanos))) {
-    return false;
-  }
-  *time = base::Time::UnixEpoch() + base::TimeDelta::FromSeconds(seconds) +
-          base::TimeDelta::FromMicroseconds(nanos / 1000);  // No nano support.
-  return true;
+  std::string time_value;
+  return dict.GetString(key, &time_value) &&
+         base::Time::FromString(time_value.c_str(), time);
 }
 
 // dict.Get() specialization for GURL values
 bool GetURLValue(const base::DictionaryValue& dict,
                  const std::string& key,
                  GURL* url) {
   std::string spec;
   if (!dict.GetString(key, &spec)) {
     return false;
   }
@@ skipping 256 matching lines @@
       best_source_index_ = i;
       if (!source.amp_url.is_empty()) {
         // This is the best possible source, stop looking.
         break;
       }
     }
   }
 }
 
 }  // namespace ntp_snippets