Allow TranslateRanker to override decisions taken by heuristics.

components/translate/core/browser/translate_ranker_impl.cc

Index: components/translate/core/browser/translate_ranker_impl.cc
diff --git a/components/translate/core/browser/translate_ranker_impl.cc b/components/translate/core/browser/translate_ranker_impl.cc
index ed4a9b1f2df21957ae73d17330d31d48db803f2c..2ffa6a186b6a0017847eaee7e7cbcd4a37b433e6 100644
--- a/components/translate/core/browser/translate_ranker_impl.cc
+++ b/components/translate/core/browser/translate_ranker_impl.cc
@@ -82,6 +82,9 @@ const base::Feature kTranslateRankerEnforcement{
 const base::Feature kTranslateRankerLogging{"TranslateRankerLogging",
                                             base::FEATURE_DISABLED_BY_DEFAULT};
 
+const base::Feature kTranslateRankerDecisionOverride{
+    "TranslateRankerDecisionOverride", base::FEATURE_DISABLED_BY_DEFAULT};
+
 TranslateRankerFeatures::TranslateRankerFeatures() {}
 
 TranslateRankerFeatures::TranslateRankerFeatures(int accepted,
@@ -182,7 +185,13 @@ bool TranslateRankerImpl::IsQueryEnabled() {
 }
 
 bool TranslateRankerImpl::IsEnforcementEnabled() {
-  return base::FeatureList::IsEnabled(kTranslateRankerEnforcement);
+  return base::FeatureList::IsEnabled(kTranslateRankerEnforcement) ||
+         IsDecisionOverrideEnabled();
+}
+
+bool TranslateRankerImpl::IsDecisionOverrideEnabled() {
+  return base::FeatureList::IsEnabled(
+      translate::kTranslateRankerDecisionOverride);

[Alexei Svitkine (slow), 2017/03/06 22:08:20]

Nit: Remove translate:: since it's already in this namespace.

 }
 
 int TranslateRankerImpl::GetModelVersion() const {