Generate param traits size methods for IPC files in chrome/ (and traits it depends on).

gpu/ipc/common/gpu_param_traits.cc

Index: gpu/ipc/common/gpu_param_traits.cc
diff --git a/gpu/ipc/common/gpu_param_traits.cc b/gpu/ipc/common/gpu_param_traits.cc
index efc298788ba9c1e60a2acbe37aba9b74a3de02cf..b5f35b20d647b9147e2912913cf64ab49acdbbbf 100644
--- a/gpu/ipc/common/gpu_param_traits.cc
+++ b/gpu/ipc/common/gpu_param_traits.cc
@@ -5,6 +5,13 @@
 // Get basic type definitions.
 #include "gpu/ipc/common/gpu_param_traits.h"
 
+// Generate param traits size methods.
+#include "ipc/param_traits_size_macros.h"
+namespace IPC {
+#undef GPU_IPC_COMMON_GPU_PARAM_TRAITS_MACROS_H_
+#include "gpu/ipc/common/gpu_param_traits_macros.h"
+}
+
 // Generate param traits write methods.
 #include "ipc/param_traits_write_macros.h"
 namespace IPC {