1 files changed, 49 insertions, 0 deletions
diff --git a/chromium/content/browser/compositor/owned_mailbox.h b/chromium/content/browser/compositor/owned_mailbox.h
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index 00000000000..3926c81e0fd
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+++ b/chromium/content/browser/compositor/owned_mailbox.h
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+// Copyright 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 CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_
+#define CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_
+
+#include "base/memory/ref_counted.h"
+#include "content/browser/compositor/image_transport_factory.h"
+#include "content/common/content_export.h"
+#include "gpu/command_buffer/common/mailbox_holder.h"
+
+namespace content {
+
+class GLHelper;
+
+// This class holds a texture id and gpu::Mailbox, and deletes the texture
+// id when the object itself is destroyed. Should only be created if a GLHelper
+// exists on the ImageTransportFactory.
+class CONTENT_EXPORT OwnedMailbox : public base::RefCounted<OwnedMailbox>,
+                                    public ImageTransportFactoryObserver {
+ public:
+  explicit OwnedMailbox(GLHelper* gl_helper);
+
+  const gpu::MailboxHolder& holder() const { return mailbox_holder_; }
+  const gpu::Mailbox& mailbox() const { return mailbox_holder_.mailbox; }
+  uint32 texture_id() const { return texture_id_; }
+  uint32 target() const { return mailbox_holder_.texture_target; }
+  uint32 sync_point() const { return mailbox_holder_.sync_point; }
+  void UpdateSyncPoint(uint32 sync_point);
+  void Destroy();
+
+ protected:
+  virtual ~OwnedMailbox();
+
+  // ImageTransportFactoryObserver implementation.
+  virtual void OnLostResources() OVERRIDE;
+
+ private:
+  friend class base::RefCounted<OwnedMailbox>;
+
+  uint32 texture_id_;
+  gpu::MailboxHolder mailbox_holder_;
+  GLHelper* gl_helper_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_COMPOSITOR_OWNED_MAILBOX_H_