Implement StructTraits for various cc and gpu types

gpu/ipc/common/mailbox_holder.typemap

Index: gpu/ipc/common/mailbox_holder.typemap
diff --git a/gpu/ipc/common/mailbox_holder.typemap b/gpu/ipc/common/mailbox_holder.typemap
index 4b40ccbee05bf3f600f8bd8dc64a170862438b64..8692f313131ac6801601bbd1713fdab216565159 100644
--- a/gpu/ipc/common/mailbox_holder.typemap
+++ b/gpu/ipc/common/mailbox_holder.typemap
@@ -4,9 +4,12 @@
 
 mojom = "//gpu/ipc/common/mailbox_holder.mojom"
 public_headers = [ "//gpu/command_buffer/common/mailbox_holder.h" ]
-traits_headers = [ "//gpu/ipc/common/gpu_command_buffer_traits.h" ]
+traits_headers = [ "//gpu/ipc/common/mailbox_holder_struct_traits.h" ]
 deps = [
-  "//gpu/ipc/common:command_buffer_traits",
+  "//mojo/public/cpp/bindings",
+]
+public_deps = [
+  "//gpu/command_buffer/common",
+  "//mojo/public/cpp/bindings",
 ]
-
 type_mappings = [ "gpu.mojom.MailboxHolder=::gpu::MailboxHolder" ]