2 files changed, 12 insertions, 0 deletions
diff --git a/gpu/command_buffer/common/command_buffer.h b/gpu/command_buffer/common/command_buffer.h
index 963b228..b758333 100644
--- a/gpu/command_buffer/common/command_buffer.h
+++ b/gpu/command_buffer/common/command_buffer.h
@@ -80,6 +80,12 @@ class CommandBuffer {
   // identifies it or -1 on error.
   virtual int32 CreateTransferBuffer(size_t size) = 0;
 
+  // Register an existing shared memory object and get an ID that can be used
+  // to identify it in the command buffer. Callee dups the handle until
+  // DestroyTransferBuffer is called.
+  virtual int32 RegisterTransferBuffer(base::SharedMemory* shared_memory,
+                                       size_t size) = 0;
+
   // Destroy a transfer buffer and recycle the handle.
   virtual void DestroyTransferBuffer(int32 id) = 0;
 
diff --git a/gpu/command_buffer/common/command_buffer_mock.h b/gpu/command_buffer/common/command_buffer_mock.h
index a633d24..99a72d3 100644
--- a/gpu/command_buffer/common/command_buffer_mock.h
+++ b/gpu/command_buffer/common/command_buffer_mock.h
@@ -8,6 +8,10 @@
 #include "../common/command_buffer.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
+namespace base {
+class SharedMemory;
+}
+
 namespace gpu {
 
 // An NPObject that implements a shared memory command buffer and a synchronous
@@ -26,6 +30,8 @@ class MockCommandBuffer : public CommandBuffer {
   MOCK_METHOD1(CreateTransferBuffer, int32(size_t size));
   MOCK_METHOD1(DestroyTransferBuffer, void(int32 handle));
   MOCK_METHOD1(GetTransferBuffer, Buffer(int32 handle));
+  MOCK_METHOD2(RegisterTransferBuffer, int32(base::SharedMemory* shared_memory,
+                                             size_t size));
   MOCK_METHOD1(SetToken, void(int32 token));
   MOCK_METHOD1(SetParseError, void(error::Error error));