[Doodle] Allow cookie authentication

components/doodle/doodle_fetcher_impl.cc

Index: components/doodle/doodle_fetcher_impl.cc
diff --git a/components/doodle/doodle_fetcher_impl.cc b/components/doodle/doodle_fetcher_impl.cc
index b1c8188b88c70b13569db6fa497a296016806a29..0109468a96694f345baa735c09d1957458bb2642 100644
--- a/components/doodle/doodle_fetcher_impl.cc
+++ b/components/doodle/doodle_fetcher_impl.cc
@@ -87,11 +87,14 @@ void DoodleFetcherImpl::FetchDoodle(FinishedCallback callback) {
             "currently running Doodle."
           trigger:
             "Displaying the new tab page on Android."
-          data: "None."
+          data:
+            "The user's Google cookies. Used for example to show birthday "
+            "doodles at appropriate times."
           destination: GOOGLE_OWNED_SERVICE
         }
         policy {
-          cookies_allowed: false
+          cookies_allowed: true
+          cookies_store: "user"
           setting:
             "Choosing a non-Google search engine in Chromium settings under "
             "'Search Engine' will disable this feature."
@@ -103,9 +106,8 @@ void DoodleFetcherImpl::FetchDoodle(FinishedCallback callback) {
       BuildDoodleURL(GetGoogleBaseUrl(), gray_background_, override_url_),
       URLFetcher::GET, this, traffic_annotation);
   fetcher_->SetRequestContext(download_context_.get());
-  fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
-                         net::LOAD_DO_NOT_SAVE_COOKIES |
-                         net::LOAD_DO_NOT_SEND_AUTH_DATA);
+  // TODO(treib): Use OAuth2 authentication instead of cookies. crbug.com/711314
+  fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_AUTH_DATA);
   fetcher_->SetAutomaticallyRetryOnNetworkChanges(1);
   data_use_measurement::DataUseUserData::AttachToFetcher(
       fetcher_.get(), data_use_measurement::DataUseUserData::DOODLE);