Allow creating GLImage-backed textures with glTexStorage2D.

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 113 matching lines @@
                << static_cast<int>(format);
     return nullptr;
   }
   return image;
 }
 
 scoped_refptr<gl::GLImage>
 GpuMemoryBufferFactoryNativePixmap::CreateAnonymousImage(
     const gfx::Size& size,
     gfx::BufferFormat format,
+    gfx::BufferUsage usage,
     unsigned internalformat) {
   scoped_refptr<gfx::NativePixmap> pixmap;
 #if defined(USE_OZONE)
-  pixmap = ui::OzonePlatform::GetInstance()
-               ->GetSurfaceFactoryOzone()
-               ->CreateNativePixmap(gpu::kNullSurfaceHandle, size, format,
-                                    gfx::BufferUsage::SCANOUT);
+  pixmap =
+      ui::OzonePlatform::GetInstance()
+          ->GetSurfaceFactoryOzone()
+          ->CreateNativePixmap(gpu::kNullSurfaceHandle, size, format, usage);
 #else
   NOTIMPLEMENTED();
 #endif
   if (!pixmap.get()) {
     LOG(ERROR) << "Failed to create pixmap " << size.ToString() << " format "
                << static_cast<int>(format);
     return nullptr;
   }
   scoped_refptr<gl::GLImageNativePixmap> image(
       new gl::GLImageNativePixmap(size, internalformat));
   if (!image->Initialize(pixmap.get(), format)) {
     LOG(ERROR) << "Failed to create GLImage " << size.ToString() << " format "
                << static_cast<int>(format);
     return nullptr;
   }
   return image;
 }
 
 unsigned GpuMemoryBufferFactoryNativePixmap::RequiredTextureType() {
   return GL_TEXTURE_2D;
 }
 
 }  // namespace gpu