GpuMemoryBufferFactoryOzoneNativePixmap: expose supported GMB attribs

gpu/ipc/service/gpu_memory_buffer_factory_native_pixmap.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 "gpu/ipc/service/gpu_memory_buffer_factory_native_pixmap.h"
 
 #include "ui/gfx/client_native_pixmap.h"
 #include "ui/gfx/native_pixmap.h"
 #include "ui/gl/gl_image_native_pixmap.h"
 
@@ skipping 49 matching lines @@
 }
 
 void GpuMemoryBufferFactoryNativePixmap::DestroyGpuMemoryBuffer(
     gfx::GpuMemoryBufferId id,
     int client_id) {
   base::AutoLock lock(native_pixmaps_lock_);
   NativePixmapMapKey key(id.id, client_id);
   native_pixmaps_.erase(key);
 }
 
+gfx::GpuMemoryBufferAttribVector GpuMemoryBufferFactoryNativePixmap::
+    GetGpuMemoryBufferAttribsForUsage(gfx::BufferUsage usage) {
+  switch (usage) {
+    case gfx::BufferUsage::SCANOUT:
+    case gfx::BufferUsage::SCANOUT_CPU_READ_WRITE:
+      return ui::OzonePlatform::GetInstance()
+          ->GetSurfaceFactoryOzone()
+          ->GetScanoutFormatsWithModifiers(gfx::kNullAcceleratedWidget);
+    case gfx::BufferUsage::GPU_READ:
+    case gfx::BufferUsage::GPU_READ_CPU_READ_WRITE:
+    case gfx::BufferUsage::GPU_READ_CPU_READ_WRITE_PERSISTENT:
+      return gl::GLImageNativePixmap::QueryDmaBufFormatsAndModifiers();
+    default:
+      return gfx::GpuMemoryBufferAttribVector();
+  }
+}
+
 ImageFactory* GpuMemoryBufferFactoryNativePixmap::AsImageFactory() {
   return this;
 }
 
 scoped_refptr<gl::GLImage>
 GpuMemoryBufferFactoryNativePixmap::CreateImageForGpuMemoryBuffer(
     const gfx::GpuMemoryBufferHandle& handle,
     const gfx::Size& size,
     gfx::BufferFormat format,
     unsigned internalformat,
@@ skipping 74 matching lines @@
     return nullptr;
   }
   return image;
 }
 
 unsigned GpuMemoryBufferFactoryNativePixmap::RequiredTextureType() {
   return GL_TEXTURE_EXTERNAL_OES;
 }
 
 }  // namespace gpu