Reformat all gn files in /weblayer/public.

`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=sky@chromium.org

Bug: 1041419
Change-Id: I78142fdf2541e1f4a9152b47c71f5acf4f1d314f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1998315
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#730960}

weblayer/public/java/BUILD.gn

@@ -99,7 +99,5 @@ process_version("client_version") {
   template_file =
       "org/chromium/weblayer/WebLayerClientVersionConstants.java.version"
   output = _version_constants_java_file
-  sources = [
-    "//chrome/VERSION",
-  ]
+  sources = [ "//chrome/VERSION" ]
 }

weblayer/public/javatests/BUILD.gn

@@ -7,9 +7,7 @@ import("//build/config/android/rules.gni")
 
 android_library("weblayer_public_javatests") {
   testonly = true
-  sources = [
-    "org/chromium/weblayer/ObserverListTest.java",
-  ]
+  sources = [ "org/chromium/weblayer/ObserverListTest.java" ]
   deps = [
     "//base:base_java_test_support",
     "//third_party/junit:junit",

weblayer/public/javatestutil/BUILD.gn

@@ -7,9 +7,7 @@ import("//build/config/android/rules.gni")
 
 android_library("test_java") {
   testonly = true
-  sources = [
-    "org/chromium/weblayer/TestWebLayer.java",
-  ]
+  sources = [ "org/chromium/weblayer/TestWebLayer.java" ]
 
   deps = [
     "//base:base_java_test_support",