Add "bundle_data" target as first step for adding bundle support to gn.

tools/gn/command_desc.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 <stddef.h>
 
 #include <algorithm>
 #include <set>
 #include <sstream>
 
@@ skipping 666 matching lines @@
     return 0;
   }
 
   // Display summary.
 
   // Display this only applicable to binary targets.
   bool is_binary_output =
     target->output_type() != Target::GROUP &&
     target->output_type() != Target::COPY_FILES &&
     target->output_type() != Target::ACTION &&
-    target->output_type() != Target::ACTION_FOREACH;
+    target->output_type() != Target::ACTION_FOREACH &&
+    target->output_type() != Target::BUNDLE_DATA;
 
   // Generally we only want to display toolchains on labels when the toolchain
   // is different than the default one for this target (which we always print
   // in the header).
   Label target_toolchain = target->label().GetToolchainLabel();
 
   // Header.
   OutputString("Target: ", DECORATION_YELLOW);
   OutputString(target->label().GetUserVisibleName(false) + "\n");
   OutputString("Type: ", DECORATION_YELLOW);
@@ skipping 48 matching lines @@
   // so always display them, even for groups and such.
   PrintLibs(target, true);
   PrintLibDirs(target, true);
 
   PrintDeps(target, true);
 
   return 0;
 }
 
 }  // namespace commands