Remove update_client dependency on base/ui

BUG=571104

Review URL: https://codereview.chromium.org/1536083003

Cr-Commit-Position: refs/heads/master@{#366998}

components/update_client/BUILD.gn

@@ -58,7 +58,6 @@ source_set("update_client") {
     "//net",
     "//third_party/libxml",
     "//third_party/zlib:zip",
-    "//ui/base",
     "//url",
   ]
 }

components/update_client/DEPS

@@ -4,7 +4,6 @@ include_rules = [
   "+crypto",
   "+libxml",
   "+net",
-  "+ui/base/win",
   "+third_party/libxml",
   "+third_party/zlib",
 ]

components/update_client/background_downloader_win.cc

@@ -22,7 +22,6 @@
 #include "base/thread_task_runner_handle.h"
 #include "base/win/scoped_co_mem.h"
 #include "components/update_client/utils.h"
-#include "ui/base/win/atl_module.h"
 #include "url/gurl.h"
 
 using base::win::ScopedCoMem;