Replace IOSurfaceManager by directly passing IOSurface Mach ports over Chrome IPC.

ui/gfx/mac/io_surface_manager.cc

Index: ui/gfx/mac/io_surface_manager.cc
diff --git a/ui/gfx/mac/io_surface_manager.cc b/ui/gfx/mac/io_surface_manager.cc
deleted file mode 100644
index 9e3e9cfdb377418c7563a12024ce396f35f6cc29..0000000000000000000000000000000000000000
--- a/ui/gfx/mac/io_surface_manager.cc
+++ /dev/null
@@ -1,149 +0,0 @@
-// 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.
-
-#include "ui/gfx/mac/io_surface_manager.h"
-
-#include <IOSurface/IOSurface.h>
-#include <stddef.h>
-#include <stdint.h>
-
-#include "base/logging.h"
-#include "base/mac/scoped_cftyperef.h"
-#include "base/macros.h"
-#include "ui/gfx/buffer_format_util.h"
-
-namespace gfx {
-namespace {
-
-IOSurfaceManager* g_instance = NULL;
-
-void AddIntegerValue(CFMutableDictionaryRef dictionary,
-                     const CFStringRef key,
-                     int32_t value) {
-  base::ScopedCFTypeRef<CFNumberRef> number(
-      CFNumberCreate(NULL, kCFNumberSInt32Type, &value));
-  CFDictionaryAddValue(dictionary, key, number.get());
-}
-
-int32_t BytesPerElement(gfx::BufferFormat format, int plane) {
-  switch (format) {
-    case gfx::BufferFormat::R_8:
-      DCHECK_EQ(plane, 0);
-      return 1;
-    case gfx::BufferFormat::BGRA_8888:
-    case gfx::BufferFormat::RGBA_8888:
-      DCHECK_EQ(plane, 0);
-      return 4;
-    case gfx::BufferFormat::YUV_420_BIPLANAR:
-      static int32_t bytes_per_element[] = {1, 2};
-      DCHECK_LT(static_cast<size_t>(plane), arraysize(bytes_per_element));
-      return bytes_per_element[plane];
-    case gfx::BufferFormat::UYVY_422:
-      DCHECK_EQ(plane, 0);
-      return 2;
-    case gfx::BufferFormat::ATC:
-    case gfx::BufferFormat::ATCIA:
-    case gfx::BufferFormat::DXT1:
-    case gfx::BufferFormat::DXT5:
-    case gfx::BufferFormat::ETC1:
-    case gfx::BufferFormat::RGBA_4444:
-    case gfx::BufferFormat::RGBX_8888:
-    case gfx::BufferFormat::BGRX_8888:
-    case gfx::BufferFormat::YUV_420:
-      NOTREACHED();
-      return 0;
-  }
-
-  NOTREACHED();
-  return 0;
-}
-
-int32_t PixelFormat(gfx::BufferFormat format) {
-  switch (format) {
-    case gfx::BufferFormat::R_8:
-      return 'L008';
-    case gfx::BufferFormat::BGRA_8888:
-    case gfx::BufferFormat::RGBA_8888:
-      return 'BGRA';
-    case gfx::BufferFormat::YUV_420_BIPLANAR:
-      return '420v';
-    case gfx::BufferFormat::UYVY_422:
-      return '2vuy';
-    case gfx::BufferFormat::ATC:
-    case gfx::BufferFormat::ATCIA:
-    case gfx::BufferFormat::DXT1:
-    case gfx::BufferFormat::DXT5:
-    case gfx::BufferFormat::ETC1:
-    case gfx::BufferFormat::RGBA_4444:
-    case gfx::BufferFormat::RGBX_8888:
-    case gfx::BufferFormat::BGRX_8888:
-    case gfx::BufferFormat::YUV_420:
-      NOTREACHED();
-      return 0;
-  }
-
-  NOTREACHED();
-  return 0;
-}
-
-}  // namespace
-
-// static
-IOSurfaceManager* IOSurfaceManager::GetInstance() {
-  DCHECK(g_instance);
-  return g_instance;
-}
-
-// static
-void IOSurfaceManager::SetInstance(IOSurfaceManager* instance) {
-  DCHECK(!g_instance || !instance);
-  g_instance = instance;
-}
-
-// static
-IOSurfaceRef IOSurfaceManager::CreateIOSurface(const gfx::Size& size,
-                                               gfx::BufferFormat format) {
-  size_t num_planes = gfx::NumberOfPlanesForBufferFormat(format);
-  base::ScopedCFTypeRef<CFMutableArrayRef> planes(CFArrayCreateMutable(
-      kCFAllocatorDefault, num_planes, &kCFTypeArrayCallBacks));
-
-  // Don't specify plane information unless there are indeed multiple planes
-  // because DisplayLink drivers do not support this.
-  // http://crbug.com/527556
-  if (num_planes > 1) {
-    for (size_t plane = 0; plane < num_planes; ++plane) {
-      size_t factor = gfx::SubsamplingFactorForBufferFormat(format, plane);
-
-      base::ScopedCFTypeRef<CFMutableDictionaryRef> plane_info(
-          CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
-                                    &kCFTypeDictionaryKeyCallBacks,
-                                    &kCFTypeDictionaryValueCallBacks));
-      AddIntegerValue(plane_info, kIOSurfacePlaneWidth, size.width() / factor);
-      AddIntegerValue(plane_info, kIOSurfacePlaneHeight,
-                      size.height() / factor);
-      AddIntegerValue(plane_info, kIOSurfacePlaneBytesPerElement,
-                      BytesPerElement(format, plane));
-
-      CFArrayAppendValue(planes, plane_info);
-    }
-  }
-
-  base::ScopedCFTypeRef<CFMutableDictionaryRef> properties(
-      CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
-                                &kCFTypeDictionaryKeyCallBacks,
-                                &kCFTypeDictionaryValueCallBacks));
-  AddIntegerValue(properties, kIOSurfaceWidth, size.width());
-  AddIntegerValue(properties, kIOSurfaceHeight, size.height());
-  AddIntegerValue(properties, kIOSurfacePixelFormat, PixelFormat(format));
-  if (num_planes > 1) {
-    CFDictionaryAddValue(properties, kIOSurfacePlaneInfo, planes);
-  } else {
-    AddIntegerValue(properties, kIOSurfaceBytesPerElement,
-                    BytesPerElement(format, 0));
-  }
-
-  return IOSurfaceCreate(properties);
-}
-
-}  // namespace content