Add base::FeatureParam<> struct

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 2bc95f6c3ec802f49dabe17537878ee69a0e9f74..3d7c74e29927e26dea4500fb20ce1713c19b62b7 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -537,13 +537,13 @@ const FeatureEntry::Choice kAshForceTabletModeChoices[] = {
 #if defined(OS_ANDROID)
 const FeatureEntry::FeatureParam
     kContentSuggestionsCategoryOrderFeatureVariationGeneral[] = {
-        {ntp_snippets::kCategoryOrderParameter,
+        {ntp_snippets::kCategoryOrderParameter.name,
          ntp_snippets::kCategoryOrderGeneral},
 };
 
 const FeatureEntry::FeatureParam
     kContentSuggestionsCategoryOrderFeatureVariationEMOriented[] = {
-        {ntp_snippets::kCategoryOrderParameter,
+        {ntp_snippets::kCategoryOrderParameter.name,
          ntp_snippets::kCategoryOrderEmergingMarketsOriented},
 };
 
@@ -559,13 +559,13 @@ const FeatureEntry::FeatureVariation
 
 const FeatureEntry::FeatureParam
     kContentSuggestionsCategoryRankerFeatureVariationConstant[] = {
-        {ntp_snippets::kCategoryRankerParameter,
+        {ntp_snippets::kCategoryRankerParameter.name,
          ntp_snippets::kCategoryRankerConstantRanker},
 };
 
 const FeatureEntry::FeatureParam
     kContentSuggestionsCategoryRankerFeatureVariationClickBased[] = {
-        {ntp_snippets::kCategoryRankerParameter,
+        {ntp_snippets::kCategoryRankerParameter.name,
          ntp_snippets::kCategoryRankerClickBasedRanker},
 };