Omnibox: Create DemoteByType Experiment

chrome/common/metrics/variations/variations_util.cc

Index: chrome/common/metrics/variations/variations_util.cc
diff --git a/chrome/common/metrics/variations/variations_util.cc b/chrome/common/metrics/variations/variations_util.cc
index 2f64c92335a55147025458b7c012b93931d107fa..6cbe7577a77c9c1082fbd046cf4bbd7eccc7ab3b 100644
--- a/chrome/common/metrics/variations/variations_util.cc
+++ b/chrome/common/metrics/variations/variations_util.cc
@@ -145,6 +145,11 @@ class VariationsParamAssociator {
     return true;
   }
 
+  void ClearAllParamsForTesting() {

[Alexei Svitkine (slow), 2013/08/05 18:33:11]

You will need to rebase this on top of http://crrev.com/r215644 which moved this
code to a different file.

[Mark P, 2013/08/05 22:11:41]

Done.

+    base::AutoLock scoped_lock(lock_);
+    variation_params_.clear();
+  }
+
  private:
   friend struct DefaultSingletonTraits<VariationsParamAssociator>;
 
@@ -378,6 +383,10 @@ void ClearAllVariationIDs() {
   GroupMapAccessor::GetInstance()->ClearAllMapsForTesting();
 }
 
+void ClearAllVariationParams() {
+  VariationsParamAssociator::GetInstance()->ClearAllParamsForTesting();
+}
+
 void TestGetFieldTrialActiveGroupIds(
     const base::FieldTrial::ActiveGroups& active_groups,
     std::vector<ActiveGroupId>* name_group_ids) {