Fix getting initially active trials with shared memory.

chrome/common/variations/child_process_field_trial_syncer_unittest.cc

Index: chrome/common/variations/child_process_field_trial_syncer_unittest.cc
diff --git a/chrome/common/variations/child_process_field_trial_syncer_unittest.cc b/chrome/common/variations/child_process_field_trial_syncer_unittest.cc
index 7d1992a05597add9f1a4539fdaec93874823e7fc..d1d3101a59681bbed36f200e2a678b953732ec0d 100644
--- a/chrome/common/variations/child_process_field_trial_syncer_unittest.cc
+++ b/chrome/common/variations/child_process_field_trial_syncer_unittest.cc
@@ -54,6 +54,8 @@ std::pair<std::string, std::string> MakeStringPair(const std::string& a,
 TEST(ChildProcessFieldTrialSyncerTest, FieldTrialState) {
   base::MessageLoop message_loop;
   base::FieldTrialList field_trial_list(nullptr);
+  base::FieldTrialList::CreateTrialsFromCommandLine(
+     *base::CommandLine::ForCurrentProcess(), "field_trial_handle_switch");
 
   base::FieldTrial* trial1 = base::FieldTrialList::CreateFieldTrial("A", "G1");
   base::FieldTrial* trial2 = base::FieldTrialList::CreateFieldTrial("B", "G2");