Run gn --format over all .gn files

cc/BUILD.gn

Index: cc/BUILD.gn
diff --git a/cc/BUILD.gn b/cc/BUILD.gn
index c3b9b8ac0129b27cfc6e3a1f492b7130cdf94004..8fd1828e7ef8ff6883ca193f52bcace519748898 100644
--- a/cc/BUILD.gn
+++ b/cc/BUILD.gn
@@ -686,9 +686,9 @@ source_set("test_support") {
     "//base/third_party/dynamic_annotations",
     "//cc/surfaces",
     "//cc/surfaces:surface_id",
+    "//gpu/command_buffer/client:gl_in_process_context",
     "//gpu/command_buffer/client:gles2_c_lib",
     "//gpu/command_buffer/client:gles2_implementation",
-    "//gpu/command_buffer/client:gl_in_process_context",
     "//gpu/command_buffer/common:gles2_utils",
     "//gpu/skia_bindings",
     "//media",
@@ -696,8 +696,8 @@ source_set("test_support") {
     "//testing/gmock",
     "//testing/gtest",
     "//ui/gfx",
-    "//ui/gfx/geometry",
     "//ui/gfx:test_support",
+    "//ui/gfx/geometry",
     "//ui/gl",
     "//ui/gl:test_support",
   ]
@@ -888,8 +888,8 @@ test("cc_unittests") {
     "//testing/gtest",
     "//ui/events:events_base",
     "//ui/gfx",
-    "//ui/gfx/geometry",
     "//ui/gfx:test_support",
+    "//ui/gfx/geometry",
     "//ui/gl",
     "//ui/gl:test_support",
   ]