ui/gl: Move GLImage into gl namespace.

ui/ozone/demo/surfaceless_gl_renderer.h

Index: ui/ozone/demo/surfaceless_gl_renderer.h
diff --git a/ui/ozone/demo/surfaceless_gl_renderer.h b/ui/ozone/demo/surfaceless_gl_renderer.h
index ef90885ec98e8b1797251e5d2cb3d11a7e313d6f..b23a6188b4b8b15146ca198ad38aa9de6ff96911 100644
--- a/ui/ozone/demo/surfaceless_gl_renderer.h
+++ b/ui/ozone/demo/surfaceless_gl_renderer.h
@@ -7,9 +7,9 @@
 
 #include "ui/ozone/demo/gl_renderer.h"
 
-namespace gfx {
+namespace gl {
 class GLImage;
-}  // namespace gfx
+}
 
 namespace ui {
 
@@ -33,7 +33,7 @@ class SurfacelessGlRenderer : public GlRenderer {
     BufferWrapper();
     ~BufferWrapper();
 
-    gfx::GLImage* image() const { return image_.get(); }
+    gl::GLImage* image() const { return image_.get(); }
 
     bool Initialize(gfx::AcceleratedWidget widget, const gfx::Size& size);
     void BindFramebuffer();
@@ -42,7 +42,7 @@ class SurfacelessGlRenderer : public GlRenderer {
     gfx::AcceleratedWidget widget_ = gfx::kNullAcceleratedWidget;
     gfx::Size size_;
 
-    scoped_refptr<gfx::GLImage> image_;
+    scoped_refptr<gl::GLImage> image_;
     unsigned int gl_fb_ = 0;
     unsigned int gl_tex_ = 0;
   };