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

chrome/browser/extensions/extension_browsertest.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_BROWSERTEST_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_BROWSERTEST_H_
 
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 94 matching lines @@
                                           const base::FilePath& crx_path,
                                           const base::FilePath& pem_path,
                                           const base::FilePath& pem_out_path);
 
   // |expected_change| indicates how many extensions should be installed (or
   // disabled, if negative).
   // 1 means you expect a new install, 0 means you expect an upgrade, -1 means
   // you expect a failed upgrade.
   const extensions::Extension* InstallExtension(const base::FilePath& path,
                                                 int expected_change) {
-    return InstallOrUpdateExtension("", path, INSTALL_UI_TYPE_NONE,
-                                    expected_change);
+    return InstallOrUpdateExtension(
+        std::string(), path, INSTALL_UI_TYPE_NONE, expected_change);
   }
 
   // Same as above, but an install source other than Manifest::INTERNAL can be
   // specified.
   const extensions::Extension* InstallExtension(
       const base::FilePath& path,
       int expected_change,
       extensions::Manifest::Location install_source) {
-    return InstallOrUpdateExtension("", path, INSTALL_UI_TYPE_NONE,
-                                    expected_change, install_source);
+    return InstallOrUpdateExtension(std::string(),
+                                    path,
+                                    INSTALL_UI_TYPE_NONE,
+                                    expected_change,
+                                    install_source);
   }
 
   // Installs extension as if it came from the Chrome Webstore.
   const extensions::Extension* InstallExtensionFromWebstore(
       const base::FilePath& path, int expected_change);
 
   // Same as above but passes an id to CrxInstaller and does not allow a
   // privilege increase.
   const extensions::Extension* UpdateExtension(const std::string& id,
                                                const base::FilePath& path,
                                                int expected_change) {
     return InstallOrUpdateExtension(id, path, INSTALL_UI_TYPE_NONE,
                                     expected_change);
   }
 
   // Same as |InstallExtension| but with the normal extension UI showing up
   // (for e.g. info bar on success).
   const extensions::Extension* InstallExtensionWithUI(
       const base::FilePath& path,
       int expected_change) {
-    return InstallOrUpdateExtension("", path, INSTALL_UI_TYPE_NORMAL,
-                                    expected_change);
+    return InstallOrUpdateExtension(
+        std::string(), path, INSTALL_UI_TYPE_NORMAL, expected_change);
   }
 
   const extensions::Extension* InstallExtensionWithUIAutoConfirm(
       const base::FilePath& path,
       int expected_change,
       Browser* browser) {
-    return InstallOrUpdateExtension("", path, INSTALL_UI_TYPE_AUTO_CONFIRM,
-                                    expected_change, browser, false);
+    return InstallOrUpdateExtension(std::string(),
+                                    path,
+                                    INSTALL_UI_TYPE_AUTO_CONFIRM,
+                                    expected_change,
+                                    browser,
+                                    false);
   }
 
   // Begins install process but simulates a user cancel.
   const extensions::Extension* StartInstallButCancel(
       const base::FilePath& path) {
-    return InstallOrUpdateExtension("", path, INSTALL_UI_TYPE_CANCEL, 0);
+    return InstallOrUpdateExtension(
+        std::string(), path, INSTALL_UI_TYPE_CANCEL, 0);
   }
 
   void ReloadExtension(const std::string& extension_id);
 
   void UnloadExtension(const std::string& extension_id);
 
   void UninstallExtension(const std::string& extension_id);
 
   void DisableExtension(const std::string& extension_id);
 
@@ skipping 119 matching lines @@
 
   // Disable the sideload wipeout UI.
   extensions::FeatureSwitch::ScopedOverride
       override_sideload_wipeout_;
 
   // The default profile to be used.
   Profile* profile_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_BROWSERTEST_H_