Componentize component_updater: Move over a bunch of files to the component.

components/component_updater/BUILD.gn

Index: components/component_updater/BUILD.gn
diff --git a/components/component_updater/BUILD.gn b/components/component_updater/BUILD.gn
index 500349b57cfc423212d4b3a3eecbf35dd4d98b55..d57bbf4366c4340e9877233fa70abb28495e4fe4 100644
--- a/components/component_updater/BUILD.gn
+++ b/components/component_updater/BUILD.gn
@@ -4,15 +4,49 @@
 
 source_set("component_updater") {
   sources = [
+    "background_downloader_win.cc",
+    "background_downloader_win.h",
+    "component_patcher.cc",
+    "component_patcher.h",
+    "component_patcher_operation.cc",
+    "component_patcher_operation.h",
+    "component_updater_configurator.h",
+    "component_unpacker.cc",
+    "component_unpacker.h",
     "component_updater_paths.cc",
     "component_updater_paths.h",
+    "component_updater_ping_manager.cc",
+    "component_updater_ping_manager.h",
+    "component_updater_service.cc",
+    "component_updater_service.h",
     "component_updater_switches.cc",
     "component_updater_switches.h",
+    "component_updater_utils.cc",
+    "component_updater_utils.h",
+    "crx_update_item.h",
+    "crx_downloader.cc",
+    "crx_downloader.h",
+    "default_component_installer.cc",
+    "default_component_installer.h",
     "pref_names.cc",
     "pref_names.h",
+    "update_checker.cc",
+    "update_checker.h",
+    "update_response.cc",
+    "update_response.h",
+    "url_fetcher_downloader.cc",
+    "url_fetcher_downloader.h",
   ]
 
   deps = [
     "//base",
+    "//components/crx_file",
+    "//components/omaha_query_params",
+    "//courgette:courgette_lib",
+    "//crypto",
+    "//third_party/libxml",
+    "//third_party/zlib",
+    "//net",
+    "//ui/base",
   ]
 }