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

chrome/browser/content_settings/cookie_settings.cc

Index: chrome/browser/content_settings/cookie_settings.cc
diff --git a/chrome/browser/content_settings/cookie_settings.cc b/chrome/browser/content_settings/cookie_settings.cc
index e34a56e9a1922a7fb0e6c7dd18394459eef7740c..e0b1ff67d1cec902d14fe21b3c2fc8b114ce48f6 100644
--- a/chrome/browser/content_settings/cookie_settings.cc
+++ b/chrome/browser/content_settings/cookie_settings.cc
@@ -130,7 +130,7 @@ bool CookieSettings::IsCookieSessionOnly(const GURL& origin) const {
 void CookieSettings::GetCookieSettings(
     ContentSettingsForOneType* settings) const {
   return host_content_settings_map_->GetSettingsForOneType(
-      CONTENT_SETTINGS_TYPE_COOKIES, "", settings);
+      CONTENT_SETTINGS_TYPE_COOKIES, std::string(), settings);
 }
 
 void CookieSettings::SetDefaultCookieSetting(ContentSetting setting) {
@@ -147,17 +147,21 @@ void CookieSettings::SetCookieSetting(
   if (setting == CONTENT_SETTING_SESSION_ONLY) {
     DCHECK(secondary_pattern == ContentSettingsPattern::Wildcard());
   }
-  host_content_settings_map_->SetContentSetting(
-      primary_pattern, secondary_pattern, CONTENT_SETTINGS_TYPE_COOKIES, "",
-      setting);
+  host_content_settings_map_->SetContentSetting(primary_pattern,
+                                                secondary_pattern,
+                                                CONTENT_SETTINGS_TYPE_COOKIES,
+                                                std::string(),
+                                                setting);
 }
 
 void CookieSettings::ResetCookieSetting(
     const ContentSettingsPattern& primary_pattern,
     const ContentSettingsPattern& secondary_pattern) {
-  host_content_settings_map_->SetContentSetting(
-      primary_pattern, secondary_pattern, CONTENT_SETTINGS_TYPE_COOKIES, "",
-      CONTENT_SETTING_DEFAULT);
+  host_content_settings_map_->SetContentSetting(primary_pattern,
+                                                secondary_pattern,
+                                                CONTENT_SETTINGS_TYPE_COOKIES,
+                                                std::string(),
+                                                CONTENT_SETTING_DEFAULT);
 }
 
 void CookieSettings::ShutdownOnUIThread() {
@@ -176,9 +180,12 @@ ContentSetting CookieSettings::GetCookieSetting(
 
   // First get any host-specific settings.
   content_settings::SettingInfo info;
-  scoped_ptr<base::Value> value(
-      host_content_settings_map_->GetWebsiteSetting(
-          url, first_party_url, CONTENT_SETTINGS_TYPE_COOKIES, "", &info));
+  scoped_ptr<base::Value> value(host_content_settings_map_->GetWebsiteSetting(
+      url,
+      first_party_url,
+      CONTENT_SETTINGS_TYPE_COOKIES,
+      std::string(),
+      &info));
   if (source)
     *source = info.source;