Rewrite std::string("") to std::string(), Linux edition.

chrome/common/extensions/manifest_url_handler.cc

Index: chrome/common/extensions/manifest_url_handler.cc
diff --git a/chrome/common/extensions/manifest_url_handler.cc b/chrome/common/extensions/manifest_url_handler.cc
index 2e18eb13cf146b407bf8e53e45b28f2ff8bcabfd..690cc03e21a78851a1062d0c9f856a2432708e61 100644
--- a/chrome/common/extensions/manifest_url_handler.cc
+++ b/chrome/common/extensions/manifest_url_handler.cc
@@ -125,8 +125,8 @@ bool HomepageURLHandler::Parse(Extension* extension, string16* error) {
   std::string homepage_url_str;
   if (!extension->manifest()->GetString(keys::kHomepageURL,
                                         &homepage_url_str)) {
-    *error = ErrorUtils::FormatErrorMessageUTF16(
-        errors::kInvalidHomepageURL, "");
+    *error = ErrorUtils::FormatErrorMessageUTF16(errors::kInvalidHomepageURL,
+                                                 std::string());
     return false;
   }
   manifest_url->url_ = GURL(homepage_url_str);
@@ -156,8 +156,8 @@ bool UpdateURLHandler::Parse(Extension* extension, string16* error) {
   std::string tmp_update_url;
 
   if (!extension->manifest()->GetString(keys::kUpdateURL, &tmp_update_url)) {
-    *error = ErrorUtils::FormatErrorMessageUTF16(
-        errors::kInvalidUpdateURL, "");
+    *error = ErrorUtils::FormatErrorMessageUTF16(errors::kInvalidUpdateURL,
+                                                 std::string());
     return false;
   }