2 files changed, 6 insertions, 6 deletions
diff --git a/chrome/browser/extensions/api/declarative/initializing_rules_registry.cc b/chrome/browser/extensions/api/declarative/initializing_rules_registry.cc
index 0074233..d209bed 100644
--- a/chrome/browser/extensions/api/declarative/initializing_rules_registry.cc
+++ b/chrome/browser/extensions/api/declarative/initializing_rules_registry.cc
@@ -39,7 +39,7 @@ std::string InitializingRulesRegistry::RemoveRules(
   if (!error.empty())
     return error;
   RemoveUsedRuleIdentifiers(extension_id, rule_identifiers);
-  return "";
+  return std::string();
 }
 
 std::string InitializingRulesRegistry::RemoveAllRules(
@@ -48,7 +48,7 @@ std::string InitializingRulesRegistry::RemoveAllRules(
   if (!error.empty())
     return error;
   RemoveAllUsedRuleIdentifiers(extension_id);
-  return "";
+  return std::string();
 }
 
 std::string InitializingRulesRegistry::GetRules(
@@ -122,7 +122,7 @@ std::string InitializingRulesRegistry::CheckAndFillInOptionalRules(
       used_rule_identifiers_[extension_id].insert(*(rule->id));
     }
   }
-  return "";
+  return std::string();
 }
 
 void InitializingRulesRegistry::FillInOptionalPriorities(
diff --git a/chrome/browser/extensions/api/declarative/rules_registry_with_cache_unittest.cc b/chrome/browser/extensions/api/declarative/rules_registry_with_cache_unittest.cc
index 4f49f36..1be1983 100644
--- a/chrome/browser/extensions/api/declarative/rules_registry_with_cache_unittest.cc
+++ b/chrome/browser/extensions/api/declarative/rules_registry_with_cache_unittest.cc
@@ -69,7 +69,7 @@ TEST_F(RulesRegistryWithCacheTest, AddRules) {
   registry_->SetResult("Error");
   EXPECT_EQ("Error", AddRule(extension_id, rule_id));
   EXPECT_EQ(0, GetNumberOfRules(extension_id));
-  registry_->SetResult("");
+  registry_->SetResult(std::string());
 
   // Check that rules can be inserted.
   EXPECT_EQ("", AddRule(extension_id, rule_id));
@@ -97,7 +97,7 @@ TEST_F(RulesRegistryWithCacheTest, RemoveRules) {
   registry_->SetResult("Error");
   EXPECT_EQ("Error", RemoveRule(extension_id, rule_id));
   EXPECT_EQ(1, GetNumberOfRules(extension_id));
-  registry_->SetResult("");
+  registry_->SetResult(std::string());
 
   // Check that nothing happens if a rule does not exist.
   EXPECT_EQ("", RemoveRule(extension_id, "unknown_rule"));
@@ -122,7 +122,7 @@ TEST_F(RulesRegistryWithCacheTest, RemoveAllRules) {
   registry_->SetResult("Error");
   EXPECT_EQ("Error", registry_->RemoveAllRules(extension_id));
   EXPECT_EQ(2, GetNumberOfRules(extension_id));
-  registry_->SetResult("");
+  registry_->SetResult(std::string());
 
   // Check that rules may be removed and only for the correct extension.
   EXPECT_EQ("", registry_->RemoveAllRules(extension_id));