5 files changed, 10 insertions, 10 deletions
diff --git a/dbus/end_to_end_async_unittest.cc b/dbus/end_to_end_async_unittest.cc
index 6943494..0a3446e 100644
--- a/dbus/end_to_end_async_unittest.cc
+++ b/dbus/end_to_end_async_unittest.cc
@@ -185,7 +185,7 @@ class EndToEndAsyncTest : public testing::Test {
       ASSERT_TRUE(reader.PopString(&response_string));
       response_strings_.push_back(response_string);
     } else {
-      response_strings_.push_back(std::string());
+      response_strings_.push_back("");
     }
     message_loop_.Quit();
   };
@@ -205,7 +205,7 @@ class EndToEndAsyncTest : public testing::Test {
       ASSERT_NE("", error->GetErrorName());
       error_names_.push_back(error->GetErrorName());
     } else {
-      error_names_.push_back(std::string());
+      error_names_.push_back("");
     }
     message_loop_.Quit();
   }
diff --git a/dbus/message.cc b/dbus/message.cc
index 737b0c4..ce53a48 100644
--- a/dbus/message.cc
+++ b/dbus/message.cc
@@ -87,7 +87,7 @@ std::string Message::GetMessageTypeAsString() {
       return "MESSAGE_ERROR";
   }
   NOTREACHED();
-  return std::string();
+  return "";
 }
 
 std::string Message::ToStringInternal(const std::string& indent,
@@ -251,7 +251,7 @@ std::string Message::ToStringInternal(const std::string& indent,
 // ...
 std::string Message::ToString() {
   if (!raw_message_)
-    return std::string();
+    return "";
 
   // Generate headers first.
   std::string headers;
@@ -268,7 +268,7 @@ std::string Message::ToString() {
 
   // Generate the payload.
   MessageReader reader(this);
-  return headers + "\n" + ToStringInternal(std::string(), &reader);
+  return headers + "\n" + ToStringInternal("", &reader);
 }
 
 bool Message::SetDestination(const std::string& destination) {
diff --git a/dbus/message_unittest.cc b/dbus/message_unittest.cc
index 383e1c1..7e4455a8 100644
--- a/dbus/message_unittest.cc
+++ b/dbus/message_unittest.cc
@@ -557,7 +557,7 @@ TEST(MessageTest, GetAndSetHeaders) {
   scoped_ptr<dbus::Response> message(dbus::Response::CreateEmpty());
 
   EXPECT_EQ("", message->GetDestination());
-  EXPECT_EQ(dbus::ObjectPath(std::string()), message->GetPath());
+  EXPECT_EQ(dbus::ObjectPath(""), message->GetPath());
   EXPECT_EQ("", message->GetInterface());
   EXPECT_EQ("", message->GetMember());
   EXPECT_EQ("", message->GetErrorName());
@@ -587,7 +587,7 @@ TEST(MessageTest, GetAndSetHeaders) {
 TEST(MessageTest, SetInvalidHeaders) {
   scoped_ptr<dbus::Response> message(dbus::Response::CreateEmpty());
   EXPECT_EQ("", message->GetDestination());
-  EXPECT_EQ(dbus::ObjectPath(std::string()), message->GetPath());
+  EXPECT_EQ(dbus::ObjectPath(""), message->GetPath());
   EXPECT_EQ("", message->GetInterface());
   EXPECT_EQ("", message->GetMember());
   EXPECT_EQ("", message->GetErrorName());
@@ -607,7 +607,7 @@ TEST(MessageTest, SetInvalidHeaders) {
   EXPECT_FALSE(message->SetSender("?!#*"));
 
   EXPECT_EQ("", message->GetDestination());
-  EXPECT_EQ(dbus::ObjectPath(std::string()), message->GetPath());
+  EXPECT_EQ(dbus::ObjectPath(""), message->GetPath());
   EXPECT_EQ("", message->GetInterface());
   EXPECT_EQ("", message->GetMember());
   EXPECT_EQ("", message->GetErrorName());
diff --git a/dbus/string_util_unittest.cc b/dbus/string_util_unittest.cc
index 99eb691..76bdfcb 100644
--- a/dbus/string_util_unittest.cc
+++ b/dbus/string_util_unittest.cc
@@ -10,7 +10,7 @@ TEST(StringUtilTest, IsValidObjectPath) {
   EXPECT_TRUE(dbus::IsValidObjectPath("/foo/bar"));
   EXPECT_TRUE(dbus::IsValidObjectPath("/hoge_fuga/piyo123"));
   // Empty string.
-  EXPECT_FALSE(dbus::IsValidObjectPath(std::string()));
+  EXPECT_FALSE(dbus::IsValidObjectPath(""));
   // Emptyr elemnt.
   EXPECT_FALSE(dbus::IsValidObjectPath("//"));
   EXPECT_FALSE(dbus::IsValidObjectPath("/foo//bar"));
diff --git a/dbus/values_util.cc b/dbus/values_util.cc
index 7574f39..2e2d8e3 100644
--- a/dbus/values_util.cc
+++ b/dbus/values_util.cc
@@ -79,7 +79,7 @@ std::string GetTypeSignature(const base::Value& value) {
       return "a{sv}";
     default:
       DLOG(ERROR) << "Unexpected type " << value.GetType();
-      return std::string();
+      return "";
   }
 }