Expose a method in VariationsService to trigger a seed fetch.

chrome/browser/metrics/variations/variations_request_scheduler.cc

Index: chrome/browser/metrics/variations/variations_request_scheduler.cc
diff --git a/chrome/browser/metrics/variations/variations_request_scheduler.cc b/chrome/browser/metrics/variations/variations_request_scheduler.cc
index ff437a8c9d450aa7a78fac1127e4e05bc15b1048..9f8ae3fda051faf05b0b0f992b5a7277601207c3 100644
--- a/chrome/browser/metrics/variations/variations_request_scheduler.cc
+++ b/chrome/browser/metrics/variations/variations_request_scheduler.cc
@@ -26,7 +26,7 @@ void VariationsRequestScheduler::Reset() {
   one_shot_timer_.Stop();
 }
 
-void VariationsRequestScheduler::ScheduleFetchShortly() {
+void VariationsRequestScheduler::ForceFetch() {
   // Reset the regular timer to avoid it triggering soon after.
   Reset();
   // The delay before attempting a fetch shortly, in minutes.
@@ -36,6 +36,11 @@ void VariationsRequestScheduler::ScheduleFetchShortly() {
                         task_);
 }
 
+void VariationsRequestScheduler::ScheduleFetch() {
+  // By default (non-mobile) we can reuse ForceFetch.
+  ForceFetch();
+}
+
 base::Closure VariationsRequestScheduler::task() const {
   return task_;
 }