content: Move type selection logic out of GpuMemoryBufferImpl.

content/common/gpu/client/gpu_memory_buffer_impl_io_surface.cc

 // Copyright 2013 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/client/gpu_memory_buffer_impl_io_surface.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "content/common/gpu/client/gpu_memory_buffer_factory_host.h"
 #include "ui/gl/gl_bindings.h"
@@ skipping 128 matching lines @@
     case MAP:
       return true;
     case SCANOUT:
       return false;
   }
 
   NOTREACHED();
   return false;
 }
 
-// static
-bool GpuMemoryBufferImplIOSurface::IsConfigurationSupported(Format format,
-                                                            Usage usage) {
-  return IsFormatSupported(format) && IsUsageSupported(usage);
-}
-
-// static
-uint32 GpuMemoryBufferImplIOSurface::PixelFormat(Format format) {
-  switch (format) {
-    case BGRA_8888:
-      return 'BGRA';
-    case RGBA_8888:
-    case RGBX_8888:
-      NOTREACHED();
-      return 0;
-  }
-
-  NOTREACHED();
-  return 0;
-}
-
 void* GpuMemoryBufferImplIOSurface::Map() {
   DCHECK(!mapped_);
   IOSurfaceLock(io_surface_, 0, NULL);
   mapped_ = true;
   return IOSurfaceGetBaseAddress(io_surface_);
 }
 
 void GpuMemoryBufferImplIOSurface::Unmap() {
   DCHECK(mapped_);
   IOSurfaceUnlock(io_surface_, 0, NULL);
   mapped_ = false;
 }
 
 uint32 GpuMemoryBufferImplIOSurface::GetStride() const {
   return IOSurfaceGetBytesPerRow(io_surface_);
 }
 
 gfx::GpuMemoryBufferHandle GpuMemoryBufferImplIOSurface::GetHandle() const {
   gfx::GpuMemoryBufferHandle handle;
   handle.type = gfx::IO_SURFACE_BUFFER;
   handle.id = id_;
   handle.io_surface_id = IOSurfaceGetID(io_surface_);
   return handle;
 }
 
 }  // namespace content