[NTP::Push] Adding BreakingNewsSuggestionsProvider

components/ntp_snippets/breaking_news/subscription_manager.h

Index: components/ntp_snippets/breaking_news/subscription_manager.h
diff --git a/components/ntp_snippets/breaking_news/subscription_manager.h b/components/ntp_snippets/breaking_news/subscription_manager.h
index e30447d36432ebff63177ffedfe4fb33f977c0d2..5b9d289abb0e3b75c36949f3a2b11ad731291cf6 100644
--- a/components/ntp_snippets/breaking_news/subscription_manager.h
+++ b/components/ntp_snippets/breaking_news/subscription_manager.h
@@ -7,6 +7,7 @@
 
 #include "components/ntp_snippets/breaking_news/subscription_json_request.h"
 #include "components/prefs/pref_registry_simple.h"
+#include "components/version_info/version_info.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "url/gurl.h"
 
@@ -14,6 +15,10 @@ class PrefRegistrySimple;
 
 namespace ntp_snippets {
 
+// Returns the appropriate API endpoint for subscribing for push updates, in
+// consideration of the channel and variation parameters.
+GURL GetPushUpdatesSubscriptionEndpoint(version_info::Channel channel);
+
 class SubscriptionManager {
  public:
   SubscriptionManager(