Add Protobuf support in cc for gfx objects

cc/proto/BUILD.gn

Index: cc/proto/BUILD.gn
diff --git a/cc/proto/BUILD.gn b/cc/proto/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..e361a00c0258540be4aba393d46336a6b81c632f
--- /dev/null
+++ b/cc/proto/BUILD.gn
@@ -0,0 +1,34 @@
+# Copyright 2015 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.
+
+import("//third_party/protobuf/proto_library.gni")
+
+component("cc_proto") {
+  public_deps = [
+    ":proto_internal",
+  ]
+}
+
+proto_library("proto_internal") {
+  visibility = [ ":cc_proto" ]
+
+  sources = [
+    # TODO(dtrainor): Move the ui/gfx related protos to ui/gfx/proto once it is
+    # possible to include protos from other directories/targets.

[danakj, 2015/10/14 23:10:10]

can you file a bug and point to it?

[David Trainor- moved to gerrit, 2015/10/15 22:18:02]

Done.

+    "point.proto",
+    "pointf.proto",
+    "rect.proto",
+    "rectf.proto",
+    "size.proto",
+    "sizef.proto",
+    "transform.proto",
+  ]
+
+  cc_generator_options = "dllexport_decl=CC_PROTO_EXPORT:"
+  cc_include = "cc/proto/cc_proto_export.h"
+
+  defines = [ "CC_PROTO_IMPLEMENTATION" ]
+
+  extra_configs = [ "//build/config/compiler:wexit_time_destructors" ]

[danakj, 2015/10/14 23:10:10]

ditto

[David Trainor- moved to gerrit, 2015/10/15 22:18:02]

Done.

+}