[PoC] Reformat all BUILD.gn and *.gni files with new gn.

mandoline/ui/desktop_ui/BUILD.gn

Index: mandoline/ui/desktop_ui/BUILD.gn
diff --git a/mandoline/ui/desktop_ui/BUILD.gn b/mandoline/ui/desktop_ui/BUILD.gn
index 663e40b31231471c603d8cfe0573a15744bb8dc8..dfb4e9ceaa917f6e05cb0a43b53f2471c46fae4f 100644
--- a/mandoline/ui/desktop_ui/BUILD.gn
+++ b/mandoline/ui/desktop_ui/BUILD.gn
@@ -35,7 +35,6 @@ source_set("lib") {
   ]
 
   deps = [
-    "public/interfaces",
     "//base",
     "//components/web_view/public/cpp",
     "//components/web_view/public/interfaces",
@@ -52,6 +51,7 @@ source_set("lib") {
     "//ui/views",
     "//ui/views/mus",
     "//url",
+    "public/interfaces",
   ]
 }