Generalize V4L2 HW video codec device names

content/common/gpu/media/exynos_v4l2_video_device.h

-// 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.
-//
-// This file contains the implementation of ExynosV4L2Device used on
-// Exynos platform.
-
-#ifndef CONTENT_COMMON_GPU_MEDIA_EXYNOS_V4L2_VIDEO_DEVICE_H_
-#define CONTENT_COMMON_GPU_MEDIA_EXYNOS_V4L2_VIDEO_DEVICE_H_
-
-#include "content/common/gpu/media/v4l2_video_device.h"
-
-namespace content {
-
-class ExynosV4L2Device : public V4L2Device {
- public:
-  explicit ExynosV4L2Device(Type type);
-  virtual ~ExynosV4L2Device();
-
-  // V4L2Device implementation.
-  virtual int Ioctl(int request, void* arg) override;
-  virtual bool Poll(bool poll_device, bool* event_pending) override;
-  virtual bool SetDevicePollInterrupt() override;
-  virtual bool ClearDevicePollInterrupt() override;
-  virtual void* Mmap(void* addr,
-                     unsigned int len,
-                     int prot,
-                     int flags,
-                     unsigned int offset) override;
-  virtual void Munmap(void* addr, unsigned int len) override;
-  virtual bool Initialize() override;
-  virtual EGLImageKHR CreateEGLImage(EGLDisplay egl_display,
-                                     EGLContext egl_context,
-                                     GLuint texture_id,
-                                     gfx::Size frame_buffer_size,
-                                     unsigned int buffer_index,
-                                     size_t planes_count) override;
-  virtual EGLBoolean DestroyEGLImage(EGLDisplay egl_display,
-                                     EGLImageKHR egl_image) override;
-  virtual GLenum GetTextureTarget() override;
-  virtual uint32 PreferredInputFormat() override;
-  virtual uint32 PreferredOutputFormat() override;
-
- private:
-  const Type type_;
-
-  // The actual device fd.
-  int device_fd_;
-
-  // eventfd fd to signal device poll thread when its poll() should be
-  // interrupted.
-  int device_poll_interrupt_fd_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExynosV4L2Device);
-};
-}  //  namespace content
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_EXYNOS_V4L2_VIDEO_DEVICE_H_