Allow fallback from https to http for component update checks.

chrome/browser/component_updater/sw_reporter_installer_win.cc

 // Copyright (c) 2014 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/component_updater/sw_reporter_installer_win.h"
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
@@ skipping 97 matching lines @@
 
   ~SwReporterInstallerTraits() override {}
 
   bool VerifyInstallation(const base::DictionaryValue& manifest,
                           const base::FilePath& dir) const override {
     return base::PathExists(dir.Append(kSwReporterExeName));
   }
 
   bool CanAutoUpdate() const override { return true; }
 
+  bool RequiresNetworkEncryption() const override { return false; }
+
   bool OnCustomInstall(const base::DictionaryValue& manifest,
                        const base::FilePath& install_dir) override {
     return true;
   }
 
   void ComponentReady(const base::Version& version,
                       const base::FilePath& install_dir,
                       scoped_ptr<base::DictionaryValue> manifest) override {
     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
     safe_browsing::RunSwReporter(install_dir.Append(kSwReporterExeName),
@@ skipping 122 matching lines @@
 }
 
 void RegisterProfilePrefsForSwReporter(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterStringPref(prefs::kSwReporterPromptVersion, "");
 
   registry->RegisterStringPref(prefs::kSwReporterPromptSeed, "");
 }
 
 }  // namespace component_updater