Reformat all gn files in /components/url_formatter/tools.

`gn format` recently changed its formatting behavior
for deps, source, and a few other elements when they
are assigned (with =) single-element lists to be consistent
with the formatting of updates (with +=) with single-element.

Now that we've rolled in a GN binary with the change,
reformat all files so that people don't get presubmit
warnings due to this.

This CL was uploaded by git cl split.

R=drubery@chromium.org

Bug: 1041419
Change-Id: Iea425beb9d19b73f2b5d55360e6c9074965fed50
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1997557
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: Daniel Rubery <drubery@chromium.org>
Commit-Queue: Daniel Rubery <drubery@chromium.org>
Cr-Commit-Position: refs/heads/master@{#730987}

components/url_formatter/tools/BUILD.gn

@@ -3,9 +3,7 @@
 # found in the LICENSE file.
 
 executable("format_url") {
-  sources = [
-    "format_url.cc",
-  ]
+  sources = [ "format_url.cc" ]
   deps = [
     "//base",
     "//base:i18n",