Move code in ui/gl/* from gfx:: to gl::

ui/ozone/demo/gl_renderer.cc

Index: ui/ozone/demo/gl_renderer.cc
diff --git a/ui/ozone/demo/gl_renderer.cc b/ui/ozone/demo/gl_renderer.cc
index 93fe3d8e2fb6f431d1213de0319d1e41bc20ca99..3921a09003c894be34456287eb199a1a1d9909ca 100644
--- a/ui/ozone/demo/gl_renderer.cc
+++ b/ui/ozone/demo/gl_renderer.cc
@@ -15,7 +15,7 @@
 namespace ui {
 
 GlRenderer::GlRenderer(gfx::AcceleratedWidget widget,
-                       const scoped_refptr<gfx::GLSurface>& surface,
+                       const scoped_refptr<gl::GLSurface>& surface,
                        const gfx::Size& size)
     : RendererBase(widget, size), surface_(surface), weak_ptr_factory_(this) {}
 
@@ -24,7 +24,7 @@ GlRenderer::~GlRenderer() {
 
 bool GlRenderer::Initialize() {
   context_ = gl::init::CreateGLContext(nullptr, surface_.get(),
-                                       gfx::PreferIntegratedGpu);
+                                       gl::PreferIntegratedGpu);
   if (!context_.get()) {
     LOG(ERROR) << "Failed to create GL context";
     return false;