Enable _api_features.json to block APIs from service worker contexts.

chrome/common/extensions/features/api_feature.cc

Index: chrome/common/extensions/features/api_feature.cc
diff --git a/chrome/common/extensions/features/api_feature.cc b/chrome/common/extensions/features/api_feature.cc
index d53d105bc267bcbac7ecb7c26ed9da1fad32d633..edb9317b840f8eff3a55bbe3fe236f4e224f2f52 100644
--- a/chrome/common/extensions/features/api_feature.cc
+++ b/chrome/common/extensions/features/api_feature.cc
@@ -6,8 +6,8 @@
 
 namespace extensions {
 
-APIFeature::APIFeature() : internal_(false) {
-}
+APIFeature::APIFeature()
+    : internal_(false), blocked_in_service_worker_(false) {}
 
 APIFeature::~APIFeature() {
 }
@@ -16,12 +16,17 @@ bool APIFeature::IsInternal() const {
   return internal_;
 }
 
+bool APIFeature::IsBlockedInServiceWorker() const {
+  return blocked_in_service_worker_;
+}
+
 std::string APIFeature::Parse(const base::DictionaryValue* value) {
   std::string error = SimpleFeature::Parse(value);
   if (!error.empty())
     return error;
 
   value->GetBoolean("internal", &internal_);
+  value->GetBoolean("blocked_in_service_worker", &blocked_in_service_worker_);
 
   if (GetContexts()->empty())
     return name() + ": API features must specify at least one context.";
@@ -29,4 +34,4 @@ std::string APIFeature::Parse(const base::DictionaryValue* value) {
   return std::string();
 }
 
-}  // namespace
+}  // namespace extensions