Minimize bundled user-agent CSS: html.css

third_party/WebKit/public/BUILD.gn

Index: third_party/WebKit/public/BUILD.gn
diff --git a/third_party/WebKit/public/BUILD.gn b/third_party/WebKit/public/BUILD.gn
index 4f3c64734685d617db6577a8fd0dbb7db2b39f4b..07cf794bbb0e03d5dab2b16a2494f38ae577a533 100644
--- a/third_party/WebKit/public/BUILD.gn
+++ b/third_party/WebKit/public/BUILD.gn
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//mojo/public/tools/bindings/mojom.gni")
+import("//third_party/WebKit/Source/bindings/core/core.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//tools/grit/grit_rule.gni")
 
@@ -140,6 +141,14 @@ grit("resources") {
       "use_concatenated_impulse_responses",
     ]
   }
+  html_min_css = "$blink_core_output_dir/html.css"
+  grit_flags += [
+    "-E",
+    "html_min_css=" + rebase_path(html_min_css),
+  ]
+  deps = [
+    "//third_party/WebKit/Source/core:make_minimized_css",
+  ]
 }
 
 # GYP version: WebKit/public/blink_resources.gyp:blink_image_resources