Clean formatting after http://crrev.com/2544803002/.

tools/gn/xcode_writer.cc

 // Copyright 2016 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.
 
 #include "tools/gn/xcode_writer.h"
 
 #include <iomanip>
 #include <map>
 #include <memory>
 #include <sstream>
@@ skipping 18 matching lines @@
 #include "tools/gn/variables.h"
 #include "tools/gn/xcode_object.h"
 
 namespace {
 
 struct SafeEnvironmentVariableInfo {
   const char* name;
   bool capture_at_generation;
 };
 
+// clang-format off
 SafeEnvironmentVariableInfo kSafeEnvironmentVariables[] = {
-    {"HOME", true}, {"LANG", true},    {"PATH", true},
-    {"USER", true}, {"TMPDIR", false},
+    {"HOME", true},
+    {"LANG", true},
+    {"PATH", true},
+    {"USER", true},
+    {"TMPDIR", false},
 };
+// clang-format on
 
 XcodeWriter::TargetOsType GetTargetOs(const Args& args) {
   const Value* target_os_value = args.GetArgOverride(variables::kTargetOs);
   if (target_os_value) {
     if (target_os_value->type() == Value::STRING) {
       if (target_os_value->string_value() == "ios")
         return XcodeWriter::WRITER_TARGET_OS_IOS;
     }
   }
   return XcodeWriter::WRITER_TARGET_OS_MACOS;
 }
 
 std::string GetBuildScript(const std::string& target_name,
                            const std::string& ninja_extra_args,
                            base::Environment* environment) {
   std::stringstream script;
   script << "echo note: \"Compile and copy " << target_name << " via ninja\"\n"
          << "exec ";
 
   // Launch ninja with a sanitized environment (Xcode sets many environment
   // variable overridding settings, including the SDK, thus breaking hermetic
   // build).
   script << "env -i ";
-  for (size_t i = 0; i < arraysize(kSafeEnvironmentVariables); ++i) {
-    const auto& variable = kSafeEnvironmentVariables[i];
+  for (const auto& variable : kSafeEnvironmentVariables) {
     script << variable.name << "=\"";
 
     std::string value;
     if (variable.capture_at_generation)
       environment->GetVar(variable.name, &value);
 
     if (!value.empty())
       script << value;
     else
       script << "$" << variable.name;
@@ skipping 350 matching lines @@
     for (auto* object : pair.second) {
       object->Print(out, 2);
     }
     out << "/* End " << ToString(pair.first) << " section */\n";
   }
 
   out << "\t};\n"
       << "\trootObject = " << project->Reference() << ";\n"
       << "}\n";
 }