[NTP::Push] Adding BreakingNewsSuggestionsProvider

components/ntp_snippets/ntp_snippets_constants.cc

Index: components/ntp_snippets/ntp_snippets_constants.cc
diff --git a/components/ntp_snippets/ntp_snippets_constants.cc b/components/ntp_snippets/ntp_snippets_constants.cc
index 82304939470eaa67d51ec1ff8ca809b408d3b2aa..172a72507f40dfcc26e1bdbd4039531e15d6f353 100644
--- a/components/ntp_snippets/ntp_snippets_constants.cc
+++ b/components/ntp_snippets/ntp_snippets_constants.cc
@@ -18,4 +18,14 @@ const char kContentSuggestionsAlphaServer[] =
     "https://alpha-chromecontentsuggestions-pa.sandbox.googleapis.com/v1/"
     "suggestions/fetch";
 
+const char kPushUpdatesSubscriptionServer[] =
+    "https://chromecontentsuggestions-pa.googleapis.com/v1/suggestions/"
+    "subscribe";
+const char kPushUpdatesSubscriptionStagingServer[] =
+    "https://staging-chromecontentsuggestions-pa.googleapis.com/v1/suggestions/"
+    "subscribe";
+const char kPushUpdatesSubscriptionAlphaServer[] =
+    "https://alpha-chromecontentsuggestions-pa.sandbox.googleapis.com/v1/"
+    "suggestions/subscribe";
+
 }  // namespace ntp_snippets