media: Optimize HW Video to 2D Canvas copy.

media/filters/context_3d.h

+// Copyright (c) 2014 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.
+
+#ifndef MEDIA_FILTERS_CONTEXT_3D_H_
+#define MEDIA_FILTERS_CONTEXT_3D_H_
+
+class GrContext;
+
+namespace gpu {
+namespace gles2 {
+class GLES2Interface;
+}
+}
+
+namespace media {
+
+// This struct can be used to make media use gpu::gles2::GLES2Interface and
+// GrContext.
+// Usage:
+// gpu::gles2::GLES2Interface* gl = ...;
+// GrContext* gr_context = ...;
+// Context3D context_3d(gl, gr_context);
+
+struct Context3D {
+  Context3D() : gl(nullptr), gr_context(nullptr) {}
+  Context3D(gpu::gles2::GLES2Interface* gl_, class GrContext* gr_context_)
+      : gl(gl_), gr_context(gr_context_) {}
+
+  gpu::gles2::GLES2Interface* gl;
+  class GrContext* gr_context;
+};
+
+}  // namespace media
+
+#endif  // MEDIA_FILTERS_CONTEXT_3D_H_