Added support for opening a GPU command buffer from a renderer processes through a GPU channel.

Probably only works in windows only so far.
TEST=none
BUG=none

Review URL: http://codereview.chromium.org/657046

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@40783 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 28 insertions, 3 deletions

diff --git a/chrome/common/gpu_messages.h b/chrome/common/gpu_messages.h
index fc2a826..1bf9bac 100644
--- a/chrome/common/gpu_messages.h
+++ b/chrome/common/gpu_messages.h
@@ -15,11 +15,36 @@
 #include "chrome/common/common_param_traits.h"
 #include "chrome/common/gpu_native_window_handle.h"
 #include "chrome/common/transport_dib.h"
+#include "gpu/command_buffer/common/command_buffer.h"
 
 namespace IPC {
-
-// Potential new structures for messages go here.
-
+template <>
+struct ParamTraits<gpu::CommandBuffer::State> {
+  typedef gpu::CommandBuffer::State param_type;
+  static void Write(Message* m, const param_type& p) {
+    m->WriteInt(p.size);
+    m->WriteInt(p.get_offset);
+    m->WriteInt(p.put_offset);
+    m->WriteInt(p.token);
+    m->WriteInt(p.error);
+  }
+  static bool Read(const Message* m, void** iter, param_type* p) {
+    int32 temp;
+    if (m->ReadInt(iter, &p->size) &&
+        m->ReadInt(iter, &p->get_offset) &&
+        m->ReadInt(iter, &p->put_offset) &&
+        m->ReadInt(iter, &p->token) &&
+        m->ReadInt(iter, &temp)) {
+      p->error = static_cast<gpu::error::Error>(temp);
+      return true;
+    } else {
+      return false;
+    }
+  }
+  static void Log(const param_type& p, std::wstring* l) {
+    l->append(L"<CommandBuffer::State>");
+  }
+};
 }  // namespace IPC
 
 #define MESSAGES_INTERNAL_FILE \