Reland: Password manager: Gnome support for Public Suffix List matching

chrome/browser/password_manager/psl_matching_helper.cc

 // Copyright 2013 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/password_manager/psl_matching_helper.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 37 matching lines @@
       net::registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES);
 }
 
 // static
 void PSLMatchingHelper::EnablePublicSuffixDomainMatchingForTesting() {
   psl_enabled_override_ = true;
 }
 
 // static
 bool PSLMatchingHelper::DeterminePSLEnabled() {
-#if defined(OS_ANDROID) || defined(OS_WIN)
+#if defined(OS_ANDROID) || defined(OS_WIN) || defined(OS_LINUX)
   // Default choice is "enabled", so we do not need to check for
   // kEnablePasswordAutofillPublicSuffixDomainMatching.
   bool enabled = true;
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisablePasswordAutofillPublicSuffixDomainMatching)) {
     enabled = false;
   }
   return enabled;
 #else
   return false;
 #endif
 }