Move most of the component updater artifacts to update_client.

components/update_client/update_checker.h

Index: components/update_client/update_checker.h
diff --git a/components/component_updater/update_checker.h b/components/update_client/update_checker.h
similarity index 82%
rename from components/component_updater/update_checker.h
rename to components/update_client/update_checker.h
index 742aed7d36df83bea301882f46e40a18a340e7f5..1ac642628267597ff7d987dc5c62e77cc999b9cb 100644
--- a/components/component_updater/update_checker.h
+++ b/components/update_client/update_checker.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_COMPONENT_UPDATER_UPDATE_CHECKER_H_
-#define COMPONENTS_COMPONENT_UPDATER_UPDATE_CHECKER_H_
+#ifndef COMPONENTS_UPDATE_CLIENT_UPDATE_CHECKER_H_
+#define COMPONENTS_UPDATE_CLIENT_UPDATE_CHECKER_H_
 
 #include <string>
 #include <vector>
@@ -11,7 +11,7 @@
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
-#include "components/component_updater/update_response.h"
+#include "components/update_client/update_response.h"
 #include "url/gurl.h"
 
 class GURL;
@@ -20,7 +20,7 @@ namespace net {
 class URLRequestContextGetter;
 }
 
-namespace component_updater {
+namespace update_client {
 
 class Configurator;
 struct CrxUpdateItem;
@@ -52,6 +52,6 @@ class UpdateChecker {
   DISALLOW_COPY_AND_ASSIGN(UpdateChecker);
 };
 
-}  // namespace component_updater
+}  // namespace update_client
 
-#endif  // COMPONENTS_COMPONENT_UPDATER_UPDATE_CHECKER_H_
+#endif  // COMPONENTS_UPDATE_CLIENT_UPDATE_CHECKER_H_