5 files changed, 5 insertions, 5 deletions
diff --git a/chrome/browser/chromeos/settings/owner_flags_storage.cc b/chrome/browser/chromeos/settings/owner_flags_storage.cc
index 9c21c31..a6e926f 100644
--- a/chrome/browser/chromeos/settings/owner_flags_storage.cc
+++ b/chrome/browser/chromeos/settings/owner_flags_storage.cc
@@ -47,7 +47,7 @@ OwnerFlagsStorage::OwnerFlagsStorage(PrefService *prefs,
 
 OwnerFlagsStorage::~OwnerFlagsStorage() {}
 
-bool OwnerFlagsStorage::SetFlags(std::set<std::string> flags) {
+bool OwnerFlagsStorage::SetFlags(const std::set<std::string>& flags) {
   PrefServiceFlagsStorage::SetFlags(flags);
 
   base::ListValue experiments_list;
diff --git a/chrome/browser/chromeos/settings/owner_flags_storage.h b/chrome/browser/chromeos/settings/owner_flags_storage.h
index 77d7830..1ba8b21 100644
--- a/chrome/browser/chromeos/settings/owner_flags_storage.h
+++ b/chrome/browser/chromeos/settings/owner_flags_storage.h
@@ -22,7 +22,7 @@ class OwnerFlagsStorage : public ::about_flags::PrefServiceFlagsStorage {
   OwnerFlagsStorage(PrefService *prefs, CrosSettings *cros_settings);
   virtual ~OwnerFlagsStorage();
 
-  virtual bool SetFlags(std::set<std::string> flags) OVERRIDE;
+  virtual bool SetFlags(const std::set<std::string>& flags) OVERRIDE;
 
  private:
   CrosSettings* cros_settings_;
diff --git a/chrome/browser/flags_storage.h b/chrome/browser/flags_storage.h
index 13efbb6..0651f00 100644
--- a/chrome/browser/flags_storage.h
+++ b/chrome/browser/flags_storage.h
@@ -20,7 +20,7 @@ class FlagsStorage {
   // Retrieves the flags as a set of strings.
   virtual std::set<std::string> GetFlags() = 0;
   // Stores the |flags| and returns true on success.
-  virtual bool SetFlags(std::set<std::string> flags) = 0;
+  virtual bool SetFlags(const std::set<std::string>& flags) = 0;
 };
 
 }  // namespace about_flags
diff --git a/chrome/browser/pref_service_flags_storage.cc b/chrome/browser/pref_service_flags_storage.cc
index 7cc1f5b..ddd6705 100644
--- a/chrome/browser/pref_service_flags_storage.cc
+++ b/chrome/browser/pref_service_flags_storage.cc
@@ -33,7 +33,7 @@ std::set<std::string> PrefServiceFlagsStorage::GetFlags() {
   return flags;
 }
 
-bool PrefServiceFlagsStorage::SetFlags(std::set<std::string> flags) {
+bool PrefServiceFlagsStorage::SetFlags(const std::set<std::string>& flags) {
   ListPrefUpdate update(prefs_, prefs::kEnabledLabsExperiments);
   ListValue* experiments_list = update.Get();
 
diff --git a/chrome/browser/pref_service_flags_storage.h b/chrome/browser/pref_service_flags_storage.h
index 1a5539d..7710eb8 100644
--- a/chrome/browser/pref_service_flags_storage.h
+++ b/chrome/browser/pref_service_flags_storage.h
@@ -20,7 +20,7 @@ class PrefServiceFlagsStorage : public FlagsStorage {
   virtual ~PrefServiceFlagsStorage();
 
   virtual std::set<std::string> GetFlags() OVERRIDE;
-  virtual bool SetFlags(std::set<std::string> flags) OVERRIDE;
+  virtual bool SetFlags(const std::set<std::string>& flags) OVERRIDE;
 
  private:
   PrefService* prefs_;