Skeleton for proto_zero_plugin.

components/tracing.gyp

Index: components/tracing.gyp
diff --git a/components/tracing.gyp b/components/tracing.gyp
index 1e6a2303295e6dfeb94a2c3e3d929ea0668647d3..e4b0dbcd2b56101b40c64871a00dbd22f1742cc7 100644
--- a/components/tracing.gyp
+++ b/components/tracing.gyp
@@ -57,5 +57,41 @@
         }],
       ]
     },
+    {
+      'target_name': 'proto_zero_plugin',
+      'type': 'executable',
+      'toolsets': ['host'],
+      'sources': [
+        'tracing/proto_zero_plugin/proto_zero_generator.cc',
+        'tracing/proto_zero_plugin/proto_zero_generator.h',
+        'tracing/proto_zero_plugin/proto_zero_plugin.cc',
+      ],
+      'include_dirs': [
+        '..',
+        '../third_party/protobuf/src',
+      ],
+      'dependencies': [
+        '../third_party/protobuf/protobuf.gyp:protoc_lib',
+      ],
+    },
+    {
+      'target_name': 'mock_messages',

[Primiano Tucci (use gerrit), 2016/07/13 16:52:31]

call this target "proto_zero_test_message"
this target name has a global visibility, mock_messages is super generic.

+      'type': 'static_library',
+      'variables': {
+        'proto_in_dir': 'tracing/proto_zero_plugin',
+        'proto_out_dir': 'components/tracing/proto_zero_plugin',
+        'generator_plugin': 'proto_zero_plugin',
+        'generator_plugin_suffix': '.zeropb',

[Primiano Tucci (use gerrit), 2016/07/13 16:52:31]

i'd make this .pbzero for consistency with ProtoZeroMessage naming

+        'generate_cc': 0,
+        'generate_python': 0,
+      },
+      'sources': [
+        'tracing/proto_zero_plugin/mock_messages.proto',
+      ],
+      'dependencies': [
+        'proto_zero_plugin',
+      ],
+      'includes': ['../build/protoc.gypi'],
+    },
   ],
 }