Update from https://crrev.com/306655

gpu/ipc/gpu_command_buffer_traits.cc

Index: gpu/ipc/gpu_command_buffer_traits.cc
diff --git a/gpu/ipc/gpu_command_buffer_traits.cc b/gpu/ipc/gpu_command_buffer_traits.cc
index 1b30034063d75bf6a5bf00382977383adaac7554..ade1e1dba0849af8760383ac6d8255bdbb5cb626 100644
--- a/gpu/ipc/gpu_command_buffer_traits.cc
+++ b/gpu/ipc/gpu_command_buffer_traits.cc
@@ -5,6 +5,7 @@
 #include "gpu/ipc/gpu_command_buffer_traits.h"
 
 #include "gpu/command_buffer/common/mailbox_holder.h"
+#include "gpu/command_buffer/common/value_state.h"
 
 // Generate param traits write methods.
 #include "ipc/param_traits_write_macros.h"
@@ -95,4 +96,31 @@ void ParamTraits<gpu::MailboxHolder>::Log(const param_type& p, std::string* l) {
   *l += base::StringPrintf(":%04x@%d", p.texture_target, p.sync_point);
 }
 
+void ParamTraits<gpu::ValueState>::Write(Message* m, const param_type& p) {
+  m->WriteData(reinterpret_cast<const char*>(&p),
+               sizeof(gpu::ValueState));
+}
+
+bool ParamTraits<gpu::ValueState>::Read(const Message* m,
+                                        PickleIterator* iter,
+                                        param_type* p) {
+  int length;
+  const char* data = NULL;
+  if (!m->ReadData(iter, &data, &length) || length != sizeof(gpu::ValueState))
+    return false;
+  DCHECK(data);
+  memcpy(p, data, sizeof(gpu::ValueState));
+  return true;
+}
+
+void ParamTraits<gpu::ValueState>::Log(const param_type& p, std::string* l) {
+  l->append("<ValueState (");
+  for (size_t i = 0; i < sizeof(p.int_value); ++i)
+    *l += base::StringPrintf("%i ", p.int_value[i]);
+  l->append(" int values ");
+  for (size_t i = 0; i < sizeof(p.float_value); ++i)
+    *l += base::StringPrintf("%f ", p.float_value[i]);
+  l->append(" float values)>");
+}
+
 }  // namespace IPC