[Remote suggestions] Refactor the scheduler

components/ntp_snippets/BUILD.gn

Index: components/ntp_snippets/BUILD.gn
diff --git a/components/ntp_snippets/BUILD.gn b/components/ntp_snippets/BUILD.gn
index cb73a48d23620811fbf71d7506c62b6827d06329..f6f342e94ff224b3ed449bc5d7c400d4958436f7 100644
--- a/components/ntp_snippets/BUILD.gn
+++ b/components/ntp_snippets/BUILD.gn
@@ -63,14 +63,14 @@ static_library("ntp_snippets") {
     "remote/remote_suggestions_provider_impl.cc",
     "remote/remote_suggestions_provider_impl.h",
     "remote/remote_suggestions_scheduler.h",
+    "remote/remote_suggestions_scheduler_impl.cc",
+    "remote/remote_suggestions_scheduler_impl.h",
     "remote/remote_suggestions_status_service.cc",
     "remote/remote_suggestions_status_service.h",
     "remote/request_params.cc",
     "remote/request_params.h",
     "remote/request_throttler.cc",
     "remote/request_throttler.h",
-    "remote/scheduling_remote_suggestions_provider.cc",
-    "remote/scheduling_remote_suggestions_provider.h",
     "sessions/foreign_sessions_suggestions_provider.cc",
     "sessions/foreign_sessions_suggestions_provider.h",
     "sessions/tab_delegate_sync_adapter.cc",
@@ -150,9 +150,9 @@ source_set("unit_tests") {
     "remote/remote_suggestions_database_unittest.cc",
     "remote/remote_suggestions_fetcher_unittest.cc",
     "remote/remote_suggestions_provider_impl_unittest.cc",
+    "remote/remote_suggestions_scheduler_impl_unittest.cc",
     "remote/remote_suggestions_status_service_unittest.cc",
     "remote/request_throttler_unittest.cc",
-    "remote/scheduling_remote_suggestions_provider_unittest.cc",
     "remote/test_utils.cc",
     "remote/test_utils.h",
     "sessions/foreign_sessions_suggestions_provider_unittest.cc",