gn format //third_party

third_party/protobuf/proto_library.gni

 # 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.
 
 # Compile a protocol buffer.
 #
 # Protobuf parameters:
 #
 #   proto_out_dir (optional)
 #       Specifies the path suffix that output files are generated under. This
@@ skipping 66 matching lines @@
     }
 
     outputs = [
       "$out_dir/{{source_name_part}}_pb2.py",
       "$out_dir/{{source_name_part}}.pb.cc",
       "$out_dir/{{source_name_part}}.pb.h",
     ]
 
     args = []
     if (defined(invoker.cc_include)) {
-      args += [ "--include", invoker.cc_include ]
+      args += [
+        "--include",
+        invoker.cc_include,
+      ]
     }
 
     args += [
-      "--protobuf", "$rel_out_dir/{{source_name_part}}.pb.h",
-      "--proto-in-dir", "{{source_dir}}",
-      "--proto-in-file", "{{source_file_part}}",
+      "--protobuf",
+      "$rel_out_dir/{{source_name_part}}.pb.h",
+      "--proto-in-dir",
+      "{{source_dir}}",
+      "--proto-in-file",
+      "{{source_file_part}}",
+
       # TODO(brettw) support system protobuf compiler.
       "--use-system-protobuf=0",
     ]
 
     protoc_label = "//third_party/protobuf:protoc($host_toolchain)"
     args += [
-      "--", 
+      "--",
+
       # Prepend with "./" so this will never pick up the system one (normally
       # when not cross-compiling, protoc's output directory will be the same
       # as the build dir, so the relative location will be empty).
-      "./" + rebase_path(get_label_info(protoc_label, "root_out_dir") +
-             "/protoc", root_build_dir),
+      "./" +
+          rebase_path(get_label_info(protoc_label, "root_out_dir") + "/protoc",
+                      root_build_dir),
     ]
 
     # If passed cc_generator_options should end in a colon, which will separate
     # it from the directory when we concatenate them. The proto compiler
     # understands this syntax.
     if (defined(invoker.cc_generator_options)) {
       cc_generator_options = invoker.cc_generator_options
     } else {
       cc_generator_options = ""
     }
     args += [
       # cc_generator_options is supposed to end in a colon if it's nonempty.
-      "--cpp_out", "$cc_generator_options$rel_out_dir",
-      "--python_out", rel_out_dir,
+      "--cpp_out",
+      "$cc_generator_options$rel_out_dir",
+      "--python_out",
+      rel_out_dir,
     ]
 
-    deps = [ protoc_label ]
+    deps = [
+      protoc_label,
+    ]
 
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
   }
 
   source_set(target_name) {
     if (defined(invoker.visibility)) {
       visibility = invoker.visibility
     }
@@ skipping 12 matching lines @@
     public_deps = [
       # The generated headers reference headers within protobuf_lite, so
       # dependencies must be able to find those headers too.
       "//third_party/protobuf:protobuf_lite",
     ]
     deps = [
       ":$action_name",
     ]
   }
 }