Add exceptions to features in GpuControlList

gpu/config/gpu_control_list.cc

Index: gpu/config/gpu_control_list.cc
diff --git a/gpu/config/gpu_control_list.cc b/gpu/config/gpu_control_list.cc
index 9ff8a4d24c63e0a05faa47190775e2be4ea4c00f..a8ba402758b71939201b9cca093b52f286f97d45 100644
--- a/gpu/config/gpu_control_list.cc
+++ b/gpu/config/gpu_control_list.cc
@@ -738,17 +738,40 @@ GpuControlList::GpuControlListEntry::GetEntryFromValue(
     const base::ListValue* feature_value = NULL;
     if (value->GetList("features", &feature_value)) {
       std::vector<std::string> feature_list;
+      std::vector<std::string> feature_exception_list;
       for (size_t i = 0; i < feature_value->GetSize(); ++i) {
         std::string feature;
+        const base::DictionaryValue* features_info_value = NULL;
         if (feature_value->GetString(i, &feature)) {
           feature_list.push_back(feature);
+        } else if (feature_value->GetDictionary(i, &features_info_value)) {
+          const base::ListValue* exception_list_value = NULL;
+          if (features_info_value->size() > 1) {
+            LOG(WARNING) << "Malformed feature entry " << entry->id();
+            return NULL;
+          }
+          if (features_info_value->GetList("exceptions",
+                                           &exception_list_value)) {
+            for (size_t i = 0; i < exception_list_value->GetSize(); ++i) {
+              std::string exception_feature;
+              if (exception_list_value->GetString(i, &exception_feature)) {
+                feature_exception_list.push_back(exception_feature);
+              } else {
+                LOG(WARNING) << "Malformed feature entry " << entry->id();
+                return NULL;
+              }
+            }
+          } else {
+            LOG(WARNING) << "Malformed feature entry " << entry->id();
+            return NULL;
+          }
         } else {
           LOG(WARNING) << "Malformed feature entry " << entry->id();
           return NULL;
         }
       }
-      if (!entry->SetFeatures(
-              feature_list, feature_map, supports_feature_type_all)) {
+      if (!entry->SetFeatures(feature_list, feature_exception_list, feature_map,
+                              supports_feature_type_all)) {
         LOG(WARNING) << "Malformed feature entry " << entry->id();
         return NULL;
       }
@@ -997,6 +1020,7 @@ void GpuControlList::GpuControlListEntry::SetInProcessGPUInfo(bool value) {
 
 bool GpuControlList::GpuControlListEntry::SetFeatures(
     const std::vector<std::string>& feature_strings,
+    const std::vector<std::string>& exception_strings,
     const FeatureMap& feature_map,
     bool supports_feature_type_all) {
   size_t size = feature_strings.size();
@@ -1007,15 +1031,20 @@ bool GpuControlList::GpuControlListEntry::SetFeatures(
     int feature = 0;
     if (supports_feature_type_all && feature_strings[i] == "all") {
       for (FeatureMap::const_iterator iter = feature_map.begin();
-           iter != feature_map.end(); ++iter)
-        features_.insert(iter->second);
+           iter != feature_map.end(); ++iter) {
+        if (std::find(exception_strings.begin(), exception_strings.end(),
+                      iter->first) == exception_strings.end())
+          features_.insert(iter->second);
+      }
       continue;
     }
     if (!StringToFeature(feature_strings[i], &feature, feature_map)) {
       features_.clear();
       return false;
     }
-    features_.insert(feature);
+    if (std::find(exception_strings.begin(), exception_strings.end(),
+                  feature_strings[i]) == exception_strings.end())
+      features_.insert(feature);
   }
   return true;
 }