Pass responsibility for IOSurface-texture reuse to the gpu process.

gpu/ipc/common/gpu_command_buffer_traits.cc

Index: gpu/ipc/common/gpu_command_buffer_traits.cc
diff --git a/gpu/ipc/common/gpu_command_buffer_traits.cc b/gpu/ipc/common/gpu_command_buffer_traits.cc
index e7105f3d2f4938440a8c8d80a27b31161028f561..a6d68c3fbded4ff33614d9b93bacc8d43c998fb5 100644
--- a/gpu/ipc/common/gpu_command_buffer_traits.cc
+++ b/gpu/ipc/common/gpu_command_buffer_traits.cc
@@ -10,6 +10,7 @@
 #include "gpu/command_buffer/common/command_buffer_id.h"
 #include "gpu/command_buffer/common/mailbox_holder.h"
 #include "gpu/command_buffer/common/sync_token.h"
+#include "gpu/command_buffer/common/texture_in_use_response.h"
 
 // Generate param traits size methods.
 #include "ipc/param_traits_size_macros.h"
@@ -121,6 +122,38 @@ void ParamTraits<gpu::SyncToken>::Log(const param_type& p, std::string* l) {
       p.command_buffer_id().GetUnsafeValue(), p.release_count());
 }
 
+void ParamTraits<gpu::TextureInUseResponse>::GetSize(base::PickleSizer* s,
+                                                     const param_type& p) {
+  GetParamSize(s, p.texture);
+  GetParamSize(s, p.in_use);
+}
+
+void ParamTraits<gpu::TextureInUseResponse>::Write(base::Pickle* m,
+                                                   const param_type& p) {
+  WriteParam(m, p.texture);
+  WriteParam(m, p.in_use);
+}
+
+bool ParamTraits<gpu::TextureInUseResponse>::Read(const base::Pickle* m,
+                                                  base::PickleIterator* iter,
+                                                  param_type* p) {
+  uint32_t texture = 0;
+  bool in_use = false;
+
+  if (!ReadParam(m, iter, &texture) || !ReadParam(m, iter, &in_use)) {
+    return false;
+  }
+
+  p->texture = texture;
+  p->in_use = in_use;
+  return true;
+}
+
+void ParamTraits<gpu::TextureInUseResponse>::Log(const param_type& p,
+                                                 std::string* l) {
+  *l += base::StringPrintf("[%u: %d]", p.texture, static_cast<int>(p.in_use));
+}
+
 void ParamTraits<gpu::Mailbox>::GetSize(base::PickleSizer* s,
                                         const param_type& p) {
   s->AddBytes(sizeof(p.name));