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

ui/gl/gl_image_ozone_native_pixmap_unittest.cc

Index: ui/gl/gl_image_ozone_native_pixmap_unittest.cc
diff --git a/ui/gl/gl_image_ozone_native_pixmap_unittest.cc b/ui/gl/gl_image_ozone_native_pixmap_unittest.cc
index 44aa677c1b1889481bd8fd8d785116d3dc5c2011..4e54674331bcf6aaa59d6f8894e7edef1f65ea79 100644
--- a/ui/gl/gl_image_ozone_native_pixmap_unittest.cc
+++ b/ui/gl/gl_image_ozone_native_pixmap_unittest.cc
@@ -43,8 +43,8 @@ class GLImageOzoneNativePixmapTestDelegate {
       client_pixmap->Unmap();
     }
 
-    scoped_refptr<gfx::GLImageOzoneNativePixmap> image(
-        new gfx::GLImageOzoneNativePixmap(size, GL_RGBA));
+    scoped_refptr<gl::GLImageOzoneNativePixmap> image(
+        new gl::GLImageOzoneNativePixmap(size, GL_RGBA));
     EXPECT_TRUE(image->Initialize(pixmap.get(), pixmap->GetBufferFormat()));
     return image;
   }