Fix most chrome/browser/ui "gn check" problems.

ui/base/BUILD.gn

Index: ui/base/BUILD.gn
diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn
index 5accf0ee26e177d3b5ce8cb347a5d6214ca846ee..184a6f78280e07d6c41314b4bee8e2e597e8d08a 100644
--- a/ui/base/BUILD.gn
+++ b/ui/base/BUILD.gn
@@ -23,10 +23,10 @@ build_ime = !is_ios
 # the host to load datapack and generate output in a format defined
 # by the platform (this is to support notifications).
 #
-# Introduce a standalone target that build on both 'host' and 'target'
-# toolset that just build the support to load datapack. The dependency
+# Introduce a standalone target that can build on both 'host' and 'target'
+# toolchains that just builds the support to load datapacks. The dependencies
 # should be kept minimal to have to build too many targets with multiple
-# toolsets.
+# toolchains.
 component("ui_data_pack") {
   sources = [
     "resource/data_pack.cc",
@@ -360,6 +360,7 @@ component("base") {
   defines = [ "UI_BASE_IMPLEMENTATION" ]
 
   public_deps = [
+    ":ui_data_pack",
     ":ui_features",
     "//base",
     "//skia",
@@ -375,7 +376,6 @@ component("base") {
     "//net",
     "//third_party/icu",
     "//third_party/zlib:zlib",
-    "//ui/base:ui_data_pack",
     "//ui/display",
     "//ui/events",
     "//ui/events/devices",