gn format //third_party

third_party/libpng/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 config("libpng_config") {
-  include_dirs = [
-    ".",
-  ]
+  include_dirs = [ "." ]
 
   defines = [
     "CHROME_PNG_WRITE_SUPPORT",
     "PNG_USER_CONFIG",
   ]
 
   if (is_android) {
     #'toolsets': ['target', 'host'],
-    defines += [
-      "CHROME_PNG_READ_PACK_SUPPORT",  # Required by freetype.
-    ]
+    defines += [ "CHROME_PNG_READ_PACK_SUPPORT" ]  # Required by freetype.
   }
 
   if (is_win) {
     if (component_mode == "shared_library") {
       defines += [
         "PNG_USE_DLL",
         "PNG_NO_MODULEDEF",
       ]
     }
   }
 }
 
 source_set("libpng_sources") {
-  sources =  [
+  sources = [
     "png.c",
     "png.h",
     "pngconf.h",
     "pngerror.c",
     "pnggccrd.c",
     "pngget.c",
     "pngmem.c",
     "pngpread.c",
     "pngread.c",
     "pngrio.c",
@@ skipping 15 matching lines @@
   if (is_win) {
     cflags = [ "/wd4267" ]  # TODO(jschuh): http://crbug.com/167187
 
     if (component_mode == "shared_library") {
       defines = [ "PNG_BUILD_DLL" ]
     }
   }
 
   public_configs = [ ":libpng_config" ]
 
-  public_deps = [ "//third_party/zlib" ]
+  public_deps = [
+    "//third_party/zlib",
+  ]
 }
 
 if (is_win) {
   component("libpng") {
-    public_deps = [ ":libpng_sources" ]
+    public_deps = [
+      ":libpng_sources",
+    ]
   }
 } else {
   group("libpng") {
-    public_deps = [ ":libpng_sources" ]
+    public_deps = [
+      ":libpng_sources",
+    ]
   }
 }