Componentize ComponentUpdaterConfigurator

components/update_client/update_query_params_delegate.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 "components/update_client/update_query_params_delegate.h"
 
+namespace {
+const char kUnknown[] = "unknown";
+const char kStable[] = "stable";
+const char kBeta[] = "beta";
+const char kDev[] = "dev";
+const char kCanary[] = "canary";
+}
+
 namespace update_client {
 
 UpdateQueryParamsDelegate::UpdateQueryParamsDelegate() {
 }
 
 UpdateQueryParamsDelegate::~UpdateQueryParamsDelegate() {
 }
 
+// static
+const char* UpdateQueryParamsDelegate::GetChannelStringHelper(
+    version_info::Channel channel) {
+  switch (channel) {
+    case version_info::Channel::STABLE:
+      return kStable;
+      break;
+    case version_info::Channel::BETA:
+      return kBeta;
+      break;
+    case version_info::Channel::DEV:
+      return kDev;
+      break;
+    case version_info::Channel::CANARY:
+      return kCanary;
+      break;
+    case version_info::Channel::UNKNOWN:
+      return kUnknown;
+      break;
+  }
+  return kUnknown;
+}
+
 }  // namespace update_client