Pull gpu service/client shared memory buffer code to GpuMemoryBufferSupport

content/common/gpu/gpu_memory_buffer_factory_surface_texture.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_surface_texture.h"
 
 #include "gpu/ipc/common/android/surface_texture_manager.h"
 #include "ui/gl/android/surface_texture.h"
 #include "ui/gl/gl_image_surface_texture.h"
 
 namespace content {
 
 GpuMemoryBufferFactorySurfaceTexture::GpuMemoryBufferFactorySurfaceTexture() {
 }
 
 GpuMemoryBufferFactorySurfaceTexture::~GpuMemoryBufferFactorySurfaceTexture() {
 }
 
-// static
-bool GpuMemoryBufferFactorySurfaceTexture::
-    IsGpuMemoryBufferConfigurationSupported(gfx::BufferFormat format,
-                                            gfx::BufferUsage usage) {
-  switch (usage) {
-    case gfx::BufferUsage::GPU_READ:
-    case gfx::BufferUsage::SCANOUT:
-    case gfx::BufferUsage::GPU_READ_CPU_READ_WRITE_PERSISTENT:
-      return false;
-    case gfx::BufferUsage::GPU_READ_CPU_READ_WRITE:
-      return format == gfx::BufferFormat::RGBA_8888;
-  }
-  NOTREACHED();
-  return false;
-}
-
 gfx::GpuMemoryBufferHandle
 GpuMemoryBufferFactorySurfaceTexture::CreateGpuMemoryBuffer(
     gfx::GpuMemoryBufferId id,
     const gfx::Size& size,
     gfx::BufferFormat format,
     gfx::BufferUsage usage,
     int client_id,
     gpu::SurfaceHandle surface_handle) {
   // Note: this needs to be 0 as the surface texture implemenation will take
   // ownership of the texture and call glDeleteTextures when the GPU service
@@ skipping 70 matching lines @@
 
   scoped_refptr<gl::GLImageSurfaceTexture> image(
       new gl::GLImageSurfaceTexture(size));
   if (!image->Initialize(it->second.get()))
     return scoped_refptr<gl::GLImage>();
 
   return image;
 }
 
 }  // namespace content