Pull gpu service/client shared memory buffer code to GpuMemoryBufferSupport

content/common/gpu/gpu_memory_buffer_factory_io_surface.cc

 // 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.
 
 #include "content/common/gpu/gpu_memory_buffer_factory_io_surface.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/mac/io_surface.h"
 #include "ui/gl/gl_image_io_surface.h"
 
 namespace content {
 
 GpuMemoryBufferFactoryIOSurface::GpuMemoryBufferFactoryIOSurface() {
 }
 
 GpuMemoryBufferFactoryIOSurface::~GpuMemoryBufferFactoryIOSurface() {
 }
 
-// static
-bool GpuMemoryBufferFactoryIOSurface::IsGpuMemoryBufferConfigurationSupported(
-    gfx::BufferFormat format,
-    gfx::BufferUsage usage) {
-  switch (usage) {
-    case gfx::BufferUsage::GPU_READ:
-    case gfx::BufferUsage::SCANOUT:
-      return format == gfx::BufferFormat::BGRA_8888 ||
-             format == gfx::BufferFormat::RGBA_8888;
-    case gfx::BufferUsage::GPU_READ_CPU_READ_WRITE:
-    case gfx::BufferUsage::GPU_READ_CPU_READ_WRITE_PERSISTENT:
-      return format == gfx::BufferFormat::R_8 ||
-             format == gfx::BufferFormat::BGRA_8888 ||
-             format == gfx::BufferFormat::UYVY_422 ||
-             format == gfx::BufferFormat::YUV_420_BIPLANAR;
-  }
-  NOTREACHED();
-  return false;
-}
-
 gfx::GpuMemoryBufferHandle
 GpuMemoryBufferFactoryIOSurface::CreateGpuMemoryBuffer(
     gfx::GpuMemoryBufferId id,
     const gfx::Size& size,
     gfx::BufferFormat format,
     gfx::BufferUsage usage,
     int client_id,
     gpu::SurfaceHandle surface_handle) {
   base::ScopedCFTypeRef<IOSurfaceRef> io_surface(
       gfx::CreateIOSurface(size, format));
@@ skipping 59 matching lines @@
 
   scoped_refptr<gl::GLImageIOSurface> image(
       new gl::GLImageIOSurface(size, internalformat));
   if (!image->Initialize(it->second.get(), handle.id, format))
     return scoped_refptr<gl::GLImage>();
 
   return image;
 }
 
 }  // namespace content