Use low entropy for studies that send experiment IDs to Google properties.

components/variations/variations_seed_processor_unittest.cc

Index: components/variations/variations_seed_processor_unittest.cc
diff --git a/components/variations/variations_seed_processor_unittest.cc b/components/variations/variations_seed_processor_unittest.cc
index 5c54df657f0cb056a382e7cb3ca6fbb95d8b2486..402c3a858c89ebdef8be8b665162ff7c2e59ebeb 100644
--- a/components/variations/variations_seed_processor_unittest.cc
+++ b/components/variations/variations_seed_processor_unittest.cc
@@ -127,7 +127,7 @@ class VariationsSeedProcessorTest : public ::testing::Test {
     ProcessedStudy processed_study;
     if (processed_study.Init(study, false)) {
       VariationsSeedProcessor().CreateTrialFromStudy(
-          processed_study, override_callback_.callback(), feature_list);
+          processed_study, override_callback_.callback(), feature_list, NULL);
       return true;
     }
     return false;
@@ -238,7 +238,7 @@ TEST_F(VariationsSeedProcessorTest,
     seed_processor.CreateTrialsFromSeed(
         seed, "en-CA", base::Time::Now(), version, Study_Channel_STABLE,
         Study_FormFactor_DESKTOP, "", "", "", override_callback_.callback(),
-        &feature_list);
+        &feature_list, NULL);
     EXPECT_EQ(kGroup1Name, base::FieldTrialList::FindFullName(kTrialName));
   }
 
@@ -252,7 +252,7 @@ TEST_F(VariationsSeedProcessorTest,
     seed_processor.CreateTrialsFromSeed(
         seed, "en-CA", base::Time::Now(), version, Study_Channel_STABLE,
         Study_FormFactor_DESKTOP, "", "", "", override_callback_.callback(),
-        &feature_list);
+        &feature_list, NULL);
     EXPECT_EQ(kGroup1Name, base::FieldTrialList::FindFullName(kTrialName));
   }
 }
@@ -500,7 +500,7 @@ TEST_F(VariationsSeedProcessorTest, StartsActive) {
   seed_processor.CreateTrialsFromSeed(
       seed, "en-CA", base::Time::Now(), base::Version("20.0.0.0"),
       Study_Channel_STABLE, Study_FormFactor_DESKTOP, "", "", "",
-      override_callback_.callback(), &feature_list_);
+      override_callback_.callback(), &feature_list_, NULL);
 
   // Non-specified and ACTIVATION_EXPLICIT should not start active, but
   // ACTIVATION_AUTO should.