Omnibox: Create DemoteByType Experiment

chrome/common/metrics/variations/variations_associated_data.cc

Index: chrome/common/metrics/variations/variations_associated_data.cc
diff --git a/chrome/common/metrics/variations/variations_associated_data.cc b/chrome/common/metrics/variations/variations_associated_data.cc
index f74bc85bde80e61cd53aa6b38a37a73bd5c03e0c..9a1a56ec18dfaeda9b07d98337097b902601f9fa 100644
--- a/chrome/common/metrics/variations/variations_associated_data.cc
+++ b/chrome/common/metrics/variations/variations_associated_data.cc
@@ -132,6 +132,11 @@ class VariationsParamAssociator {
     return true;
   }
 
+  void ClearAllParamsForTesting() {
+    base::AutoLock scoped_lock(lock_);
+    variation_params_.clear();
+  }
+
  private:
   friend struct DefaultSingletonTraits<VariationsParamAssociator>;
 
@@ -222,6 +227,10 @@ void ClearAllVariationIDs() {
   GroupMapAccessor::GetInstance()->ClearAllMapsForTesting();
 }
 
+void ClearAllVariationParams() {
+  VariationsParamAssociator::GetInstance()->ClearAllParamsForTesting();
+}
+
 }  // namespace testing
 
 }  // namespace chrome_variations