Add support for Mac/iOS application bundles to GN tool.

tools/gn/ninja_target_writer.cc

 // Copyright (c) 2013 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/ninja_target_writer.h"
 
 #include <sstream>
 
 #include "base/files/file_util.h"
 #include "base/strings/string_util.h"
@@ skipping 39 matching lines @@
   if (g_scheduler->verbose_logging())
     g_scheduler->Log("Writing", FilePathToUTF8(ninja_file));
 
   base::CreateDirectory(ninja_file.DirName());
 
   // It's ridiculously faster to write to a string and then write that to
   // disk in one operation than to use an fstream here.
   std::stringstream file;
 
   // Call out to the correct sub-type of writer.
-  if (target->output_type() == Target::COPY_FILES) {
-    NinjaCopyTargetWriter writer(target, file);
+  if (target->output_type() == Target::COPY_FILES ||
+      target->output_type() == Target::COPY_BUNDLE_DATA) {
+    Toolchain::ToolType tool_type =
+        target->output_type() == Target::COPY_FILES
+            ? Toolchain::TYPE_COPY
+            : Toolchain::TYPE_COPY_BUNDLE_DATA;
+    NinjaCopyTargetWriter writer(target, file, tool_type);
     writer.Run();
   } else if (target->output_type() == Target::ACTION ||
              target->output_type() == Target::ACTION_FOREACH) {
     NinjaActionTargetWriter writer(target, file);
     writer.Run();
   } else if (target->output_type() == Target::GROUP) {
     NinjaGroupTargetWriter writer(target, file);
     writer.Run();
   } else if (target->output_type() == Target::EXECUTABLE ||
              target->output_type() == Target::LOADABLE_MODULE ||
@@ skipping 199 matching lines @@
        << GetNinjaRulePrefixForToolchain(settings_)
        << Toolchain::ToolTypeToName(Toolchain::TYPE_STAMP);
   path_output_.WriteFiles(out_, files);
 
   if (!order_only_deps.empty()) {
     out_ << " ||";
     path_output_.WriteFiles(out_, order_only_deps);
   }
   out_ << std::endl;
 }