Trigger the Snippets Scheduler when Resuming Activities

components/ntp_snippets/remote/scheduling_remote_suggestions_provider.cc

Index: components/ntp_snippets/remote/scheduling_remote_suggestions_provider.cc
diff --git a/components/ntp_snippets/remote/scheduling_remote_suggestions_provider.cc b/components/ntp_snippets/remote/scheduling_remote_suggestions_provider.cc
index 7387410d8cc7b624f27103882229b4c152fd2094..062c12dfcd760c3cbc361379e88ffb028f4b08a6 100644
--- a/components/ntp_snippets/remote/scheduling_remote_suggestions_provider.cc
+++ b/components/ntp_snippets/remote/scheduling_remote_suggestions_provider.cc
@@ -138,11 +138,21 @@ void SchedulingRemoteSuggestionsProvider::OnPersistentSchedulerWakeUp() {
                      base::Unretained(this))));
 }
 
-void SchedulingRemoteSuggestionsProvider::OnBrowserStartup() {
+void SchedulingRemoteSuggestionsProvider::OnBrowserForegrounded() {
+  // TODO(fhorschig|jkrcal): Consider that this is called whenever we open or
+  // return to an Activity. Therefore, keep work light for fast start up calls.
+  // TODO(jkrcal): Implement.
+}
+
+void SchedulingRemoteSuggestionsProvider::OnBrowserColdStart() {
+  // TODO(fhorschig|jkrcal): Consider that work here must be kept light for fast
+  // cold start ups.
   // TODO(jkrcal): Implement.
 }
 
 void SchedulingRemoteSuggestionsProvider::OnNTPOpened() {
+  // TODO(fhorschig|jkrcal): Consider that this may be called on cold starts,
+  // so keep the work light for this case.
   // TODO(jkrcal): Implement.
 }