Add another CHECK to diagnose Android crash.

chrome/browser/metrics/field_trial_synchronizer.cc

Index: chrome/browser/metrics/field_trial_synchronizer.cc
diff --git a/chrome/browser/metrics/field_trial_synchronizer.cc b/chrome/browser/metrics/field_trial_synchronizer.cc
index 9dab6c1f3bd88f7a4f3d0ba76fc51bb21f41b023..906f637efdbff26e8ffefe611e761402e3016ac9 100644
--- a/chrome/browser/metrics/field_trial_synchronizer.cc
+++ b/chrome/browser/metrics/field_trial_synchronizer.cc
@@ -51,7 +51,11 @@ void FieldTrialSynchronizer::NotifyAllRenderers(
 void FieldTrialSynchronizer::OnFieldTrialGroupFinalized(
     const std::string& field_trial_name,
     const std::string& group_name) {
+  // TODO(asvitkine): Remove these CHECKs once http://crbug.com/359406 is fixed.
   CHECK(!field_trial_name.empty() && !group_name.empty());
+  CHECK_EQ(group_name, base::FieldTrialList::FindFullName(field_trial_name))
+      << field_trial_name << ":" << group_name << "=>"
+      << base::FieldTrialList::FindFullName(field_trial_name);
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&FieldTrialSynchronizer::NotifyAllRenderers,