ozone: ClientPixmapManager passes VGEM fd from browser to renderer.

content/browser/gpu/browser_client_native_pixmap_manager_ozone.h

+// Copyright 2015 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_GPU_BROWSER_CLIENT_NATIVE_PIXMAP_MANAGER_OZONE_H_
+#define CONTENT_BROWSER_GPU_BROWSER_CLIENT_NATIVE_PIXMAP_MANAGER_OZONE_H_
+
+#include "base/file_descriptor_posix.h"
+#include "base/memory/scoped_ptr.h"
+#include "ipc/ipc_sender.h"
+#include "ui/ozone/public/client_native_pixmap_manager.h"
+
+namespace content {
+
+class BrowserClientNativePixmapManager : public ui::ClientNativePixmapManager {
+ public:
+  static BrowserClientNativePixmapManager* GetInstance();
+  ~BrowserClientNativePixmapManager() override;
+
+  // Send virtual device file descriptor to child process.
+  void SendVirtualDevice(IPC::Sender* sender);
+
+  // ui::ClientNativePixmapManager:
+  std::vector<Configuration> GetSupportedConfigurations() const override;
+  scoped_ptr<ui::ClientNativePixmap> ImportClientNativePixmap(
+      base::FileDescriptor handle,
+      gfx::Size size,
+      ui::NativePixmapFormat format,
+      ui::NativePixmapUsage usage) override;
+
+ private:
+  friend struct BrowserClientNativePixmapManagerTrait;
+  BrowserClientNativePixmapManager();
+
+  void Initialize(const base::FileDescriptor& virtual_device) override;
+
+  scoped_ptr<ui::ClientNativePixmapManager> pixmap_manager_;
+  base::FileDescriptor virtual_device_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserClientNativePixmapManager);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_GPU_BROWSER_CLIENT_NATIVE_PIXMAP_MANAGER_OZONE_H_