Move undo files into //components/undo

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index d4d3df851bd5864a26ba517c15b894d4b4594491..a015f42f2d3059e177e49527342b1bbd42f44556 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -728,9 +728,6 @@
       'browser/translate/translate_accept_languages_factory.h',
       'browser/translate/translate_service.cc',
       'browser/translate/translate_service.h',
-      'browser/undo/bookmark_renumber_observer.h',
-      'browser/undo/undo_manager_observer.h',
-      'browser/undo/undo_operation.h',
       'browser/update_client/chrome_update_query_params_delegate.cc',
       'browser/update_client/chrome_update_query_params_delegate.h',
       'browser/upgrade_detector.cc',
@@ -2921,14 +2918,8 @@
       'browser/themes/theme_syncable_service.h',
     ],
     'chrome_browser_undo_sources': [
-      'browser/undo/bookmark_undo_service.cc',
-      'browser/undo/bookmark_undo_service.h',
       'browser/undo/bookmark_undo_service_factory.cc',
       'browser/undo/bookmark_undo_service_factory.h',
-      'browser/undo/bookmark_undo_utils.cc',
-      'browser/undo/bookmark_undo_utils.h',
-      'browser/undo/undo_manager.cc',
-      'browser/undo/undo_manager.h',
     ],
     'chrome_browser_web_resource_sources': [
       'browser/web_resource/chrome_web_resource_service.cc',
@@ -3031,6 +3022,7 @@
         '../components/components.gyp:translate_core_browser',
         '../components/components.gyp:translate_core_common',
         '../components/components.gyp:update_client',
+        '../components/components.gyp:undo_component',
         '../components/components.gyp:url_fixer',
         '../components/components.gyp:user_prefs',
         '../components/components.gyp:wallpaper',