Decouple PassThroughImageTransportSurface from GpuCommandBufferStub

gpu/ipc/service/image_transport_surface_delegate.cc

Index: gpu/ipc/service/image_transport_surface_delegate.cc
diff --git a/gpu/ipc/service/image_transport_surface_delegate.cc b/gpu/ipc/service/image_transport_surface_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..94f2bedb8c670710bd787c0c3533d375003f64be
--- /dev/null
+++ b/gpu/ipc/service/image_transport_surface_delegate.cc
@@ -0,0 +1,16 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "gpu/ipc/service/image_transport_surface_delegate.h"
+
+namespace gpu {
+
+SwapBuffersCompleteParams::SwapBuffersCompleteParams() = default;
+
+SwapBuffersCompleteParams::SwapBuffersCompleteParams(
+    SwapBuffersCompleteParams&& other) = default;
+
+SwapBuffersCompleteParams::~SwapBuffersCompleteParams() = default;
+
+}  // namespace gpu