XXX test gn format everything

content/browser/tracing/BUILD.gn

Index: content/browser/tracing/BUILD.gn
diff --git a/content/browser/tracing/BUILD.gn b/content/browser/tracing/BUILD.gn
index ae9c7dfaf3cdab496f5f60d90bb320e766cd91be..9de30e7afe6956d4dc62d941b0c8734432600ee7 100644
--- a/content/browser/tracing/BUILD.gn
+++ b/content/browser/tracing/BUILD.gn
@@ -23,8 +23,9 @@ action("generate_tracing_grd") {
   outputs = [ tracing_grd ]
 
   args = rebase_path(input_pages, target_gen_dir) + [
-    "--output", rebase_path(tracing_grd, root_build_dir),
-  ]
+           "--output",
+           rebase_path(tracing_grd, root_build_dir),
+         ]
 
   deps = [
     "//third_party/trace-viewer:generate_about_tracing",
@@ -41,9 +42,10 @@ grit("resources") {
   # resource_ids has an entry for our .grd file that looks like:
   # "<(SHARED_INTERMEDIATE_DIR)/content/browser/tracing/tracing_resources.grd"
   # and what we pass here should make that resolve to our .grd file.
-  defines = [
-    "SHARED_INTERMEDIATE_DIR=" + rebase_path(root_gen_dir, root_build_dir),
-  ]
+  defines =
+      [ "SHARED_INTERMEDIATE_DIR=" + rebase_path(root_gen_dir, root_build_dir) ]
 
-  deps = [ ":generate_tracing_grd" ]
+  deps = [
+    ":generate_tracing_grd",
+  ]
 }