Remove IOSurfaceSupport

ui/gl/io_surface_support_mac.h

-// Copyright (c) 2012 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 UI_GL_IO_SURFACE_SUPPORT_MAC_H_
-#define UI_GL_IO_SURFACE_SUPPORT_MAC_H_
-
-#include <CoreFoundation/CoreFoundation.h>
-#include <CoreVideo/CoreVideo.h>
-#include <mach/mach.h>
-#include <OpenGL/OpenGL.h>
-
-#include "base/basictypes.h"
-#include "ui/gl/gl_export.h"
-
-// This Mac OS X-specific class provides dynamically-linked access to
-// IOSurface.framework, which is only available on 10.6 and later.
-// Since Chromium is built on 10.5 we must dynamically look up all of
-// the entry points we need in this framework.
-
-// See IOSurface/IOSurfaceAPI.h and OpenGL/CGLIOSurface.h on 10.6 for
-// documentation of the fields and methods of this class.
-
-class GL_EXPORT IOSurfaceSupport {
- public:
-  // Returns an instance of the IOSurfaceSupport class if the
-  // operating system supports it, NULL otherwise. It is safe to call
-  // this multiple times.
-  static IOSurfaceSupport* Initialize();
-
-  virtual CFStringRef GetKIOSurfaceWidth() = 0;
-  virtual CFStringRef GetKIOSurfaceHeight() = 0;
-  virtual CFStringRef GetKIOSurfaceBytesPerElement() = 0;
-  virtual CFStringRef GetKIOSurfacePixelFormat() = 0;
-  virtual CFStringRef GetKIOSurfaceIsGlobal() = 0;
-
-  virtual CFTypeRef IOSurfaceCreate(CFDictionaryRef properties) = 0;
-
-  // The following two APIs assume the IOSurface was created with the
-  // kIOSurfaceIsGlobal key set to true
-  virtual uint32 IOSurfaceGetID(CFTypeRef io_surface) = 0;
-  virtual CFTypeRef IOSurfaceLookup(uint32 io_surface_id) = 0;
-
-  // The following two APIs are more robust and secure, but
-  // unfortunately it looks like it will be a lot of work to correctly
-  // transmit a mach port from process to process (possibly requiring
-  // a side channel for or extension of the Chrome IPC mechanism)
-  virtual mach_port_t IOSurfaceCreateMachPort(CFTypeRef io_surface) = 0;
-  virtual CFTypeRef IOSurfaceLookupFromMachPort(mach_port_t port) = 0;
-
-  virtual size_t IOSurfaceGetWidth(CFTypeRef io_surface) = 0;
-  virtual size_t IOSurfaceGetHeight(CFTypeRef io_surface) = 0;
-  virtual size_t IOSurfaceGetBytesPerRow(CFTypeRef io_surface) = 0;
-  virtual void* IOSurfaceGetBaseAddress(CFTypeRef io_surface) = 0;
-
-  virtual IOReturn IOSurfaceLock(CFTypeRef io_surface,
-                                 uint32 options,
-                                 uint32* seed) = 0;
-  virtual IOReturn IOSurfaceUnlock(CFTypeRef io_surface,
-                                   uint32 options,
-                                   uint32* seed) = 0;
-
-  virtual CGLError CGLTexImageIOSurface2D(CGLContextObj ctx,
-                                          GLenum target,
-                                          GLenum internal_format,
-                                          GLsizei width,
-                                          GLsizei height,
-                                          GLenum format,
-                                          GLenum type,
-                                          CFTypeRef io_surface,
-                                          GLuint plane) = 0;
-
-  virtual CFTypeRef CVPixelBufferGetIOSurface(
-      CVPixelBufferRef pixel_buffer) = 0;
-
- protected:
-  IOSurfaceSupport();
-  virtual ~IOSurfaceSupport();
-
-  DISALLOW_COPY_AND_ASSIGN(IOSurfaceSupport);
-};
-
-#endif  // UI_GL_IO_SURFACE_SUPPORT_MAC_H_