Expose a method in VariationsService to trigger a seed fetch.

chrome/browser/metrics/variations/variations_service.cc

Index: chrome/browser/metrics/variations/variations_service.cc
diff --git a/chrome/browser/metrics/variations/variations_service.cc b/chrome/browser/metrics/variations/variations_service.cc
index 1494d3bdab94aaff185911e0fbf9a5968b783cdd..7d1899329f4e14a89d9518edb7c089309f36aa4e 100644
--- a/chrome/browser/metrics/variations/variations_service.cc
+++ b/chrome/browser/metrics/variations/variations_service.cc
@@ -257,6 +257,10 @@ void VariationsService::StartRepeatedVariationsSeedFetch() {
   request_scheduler_->Start();
 }
 
+void VariationsService::OnAppEnterForeground() {
+  request_scheduler_->ScheduleFetch();

[Alexei Svitkine (slow), 2014/02/12 21:17:44]

In the ideal world, I'd actual have OnAppEnterForeground() be something that the
mobile scheduler implements and listens for.

I'd add a TODO here to change to such a design.

[rkaplow, 2014/02/12 22:51:52]

I already have a TODO in the .h, I can have it here as well.

+}
+
 // static
 GURL VariationsService::GetVariationsServerURL(PrefService* local_state) {
   std::string server_url_string(CommandLine::ForCurrentProcess()->
@@ -375,7 +379,7 @@ void VariationsService::OnURLFetchComplete(const net::URLFetcher* source) {
     // may not yet be available). In such a case, try again soon, rather than
     // waiting the full time interval.
     if (is_first_request)
-      request_scheduler_->ScheduleFetchShortly();
+      request_scheduler_->ForceFetch();
     return;
   }