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

chrome/browser/extensions/extension_apitest.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_apitest.h"
 
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/extensions/api/test/test_api.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 62 matching lines @@
     const content::NotificationDetails& details) {
   if (profile_restriction_ &&
       content::Source<Profile>(source).ptr() != profile_restriction_) {
     return;
   }
 
   switch (type) {
     case chrome::NOTIFICATION_EXTENSION_TEST_PASSED:
       VLOG(1) << "Got EXTENSION_TEST_PASSED notification.";
       results_.push_back(true);
-      messages_.push_back("");
+      messages_.push_back(std::string());
       if (waiting_)
         MessageLoopForUI::current()->Quit();
       break;
 
     case chrome::NOTIFICATION_EXTENSION_TEST_FAILED:
       VLOG(1) << "Got EXTENSION_TEST_FAILED notification.";
       results_.push_back(false);
       messages_.push_back(*(content::Details<std::string>(details).ptr()));
       if (waiting_)
         MessageLoopForUI::current()->Quit();
@@ skipping 13 matching lines @@
   extensions::TestGetConfigFunction::set_test_config_state(
       test_config_.get());
 }
 
 void ExtensionApiTest::TearDownInProcessBrowserTestFixture() {
   extensions::TestGetConfigFunction::set_test_config_state(NULL);
   test_config_.reset(NULL);
 }
 
 bool ExtensionApiTest::RunExtensionTest(const char* extension_name) {
-  return RunExtensionTestImpl(extension_name, "", kFlagEnableFileAccess);
+  return RunExtensionTestImpl(
+      extension_name, std::string(), kFlagEnableFileAccess);
 }
 
 bool ExtensionApiTest::RunExtensionTestIncognito(const char* extension_name) {
-  return RunExtensionTestImpl(
-      extension_name, "", kFlagEnableIncognito | kFlagEnableFileAccess);
+  return RunExtensionTestImpl(extension_name,
+                              std::string(),
+                              kFlagEnableIncognito | kFlagEnableFileAccess);
 }
 
 bool ExtensionApiTest::RunExtensionTestIgnoreManifestWarnings(
     const char* extension_name) {
   return RunExtensionTestImpl(
-      extension_name, "", kFlagIgnoreManifestWarnings);
+      extension_name, std::string(), kFlagIgnoreManifestWarnings);
 }
 
 bool ExtensionApiTest::RunExtensionTestAllowOldManifestVersion(
     const char* extension_name) {
   return RunExtensionTestImpl(
       extension_name,
-      "",
+      std::string(),
       kFlagEnableFileAccess | kFlagAllowOldManifestVersions);
 }
 
 bool ExtensionApiTest::RunComponentExtensionTest(const char* extension_name) {
-  return RunExtensionTestImpl(
-      extension_name, "", kFlagEnableFileAccess | kFlagLoadAsComponent);
+  return RunExtensionTestImpl(extension_name,
+                              std::string(),
+                              kFlagEnableFileAccess | kFlagLoadAsComponent);
 }
 
 bool ExtensionApiTest::RunExtensionTestNoFileAccess(
     const char* extension_name) {
-  return RunExtensionTestImpl(extension_name, "", kFlagNone);
+  return RunExtensionTestImpl(extension_name, std::string(), kFlagNone);
 }
 
 bool ExtensionApiTest::RunExtensionTestIncognitoNoFileAccess(
     const char* extension_name) {
-  return RunExtensionTestImpl(extension_name, "", kFlagEnableIncognito);
+  return RunExtensionTestImpl(
+      extension_name, std::string(), kFlagEnableIncognito);
 }
 
 bool ExtensionApiTest::RunExtensionSubtest(const char* extension_name,
                                            const std::string& page_url) {
   return RunExtensionSubtest(extension_name, page_url, kFlagEnableFileAccess);
 }
 
 bool ExtensionApiTest::RunExtensionSubtest(const char* extension_name,
                                            const std::string& page_url,
                                            int flags) {
   DCHECK(!page_url.empty()) << "Argument page_url is required.";
   return RunExtensionTestImpl(extension_name, page_url, flags);
 }
 
 
 bool ExtensionApiTest::RunPageTest(const std::string& page_url) {
   return RunExtensionSubtest("", page_url);
 }
 
 bool ExtensionApiTest::RunPageTest(const std::string& page_url,
                                    int flags) {
   return RunExtensionSubtest("", page_url, flags);
 }
 
 bool ExtensionApiTest::RunPlatformAppTest(const char* extension_name) {
-  return RunExtensionTestImpl(extension_name, "", kFlagLaunchPlatformApp);
+  return RunExtensionTestImpl(
+      extension_name, std::string(), kFlagLaunchPlatformApp);
 }
 
 // Load |extension_name| extension and/or |page_url| and wait for
 // PASSED or FAILED notification.
 bool ExtensionApiTest::RunExtensionTestImpl(const char* extension_name,
                                             const std::string& page_url,
                                             int flags) {
   bool load_as_component = (flags & kFlagLoadAsComponent) != 0;
   bool launch_platform_app = (flags & kFlagLaunchPlatformApp) != 0;
   bool use_incognito = (flags & kFlagUseIncognito) != 0;
@@ skipping 119 matching lines @@
   test_config_->SetInteger(kTestWebSocketPort,
                            websocket_server_->host_port_pair().port());
 
   return true;
 }
 
 void ExtensionApiTest::SetUpCommandLine(CommandLine* command_line) {
   ExtensionBrowserTest::SetUpCommandLine(command_line);
   test_data_dir_ = test_data_dir_.AppendASCII("api_test");
 }