Allow fallback from https to http for component update checks.

chrome/browser/component_updater/cld_component_installer.cc

 // Copyright 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/cld_component_installer.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 38 matching lines @@
 
 const char kCldManifestName[] = "CLD2 Data";
 
 CldComponentInstallerTraits::CldComponentInstallerTraits() {
 }
 
 bool CldComponentInstallerTraits::CanAutoUpdate() const {
   return true;
 }
 
+bool CldComponentInstallerTraits::RequiresNetworkEncryption() const {
+  return false;
+}
+
 bool CldComponentInstallerTraits::OnCustomInstall(
     const base::DictionaryValue& manifest,
     const base::FilePath& install_dir) {
   return true;  // Nothing custom here.
 }
 
 base::FilePath CldComponentInstallerTraits::GetInstalledPath(
     const base::FilePath& base) {
   // Currently, all platforms have the file at the same location because there
   // is no binary difference in the generated file on any supported platform.
@@ skipping 65 matching lines @@
   VLOG(1) << "Setting CLD data file location: " << path.value();
   g_latest_cld_data_file.Get() = path;
   translate::CldDataSource::Get()->SetCldDataFilePath(path);
 }
 
 base::FilePath CldComponentInstallerTraits::GetLatestCldDataFile() {
   return g_latest_cld_data_file.Get();
 }
 
 }  // namespace component_updater