Pull gpu service/client shared memory buffer code to GpuMemoryBufferSupport

content/common/gpu/gpu_memory_buffer_factory_io_surface.cc

Index: content/common/gpu/gpu_memory_buffer_factory_io_surface.cc
diff --git a/content/common/gpu/gpu_memory_buffer_factory_io_surface.cc b/content/common/gpu/gpu_memory_buffer_factory_io_surface.cc
index b1f252b3efeeb63fc26a6108702cee5f453156ab..dcbf8d1efc43bc3b2373336b53d100a1a85f57f5 100644
--- a/content/common/gpu/gpu_memory_buffer_factory_io_surface.cc
+++ b/content/common/gpu/gpu_memory_buffer_factory_io_surface.cc
@@ -19,26 +19,6 @@ 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,