ozone: Move the factory interfaces into a common target.

ui/gfx/ozone/BUILD.gn

Index: ui/gfx/ozone/BUILD.gn
diff --git a/ui/gfx/ozone/BUILD.gn b/ui/gfx/ozone/BUILD.gn
deleted file mode 100644
index 2cac0c9f06f81c5cd56320cca9c6c877089367d1..0000000000000000000000000000000000000000
--- a/ui/gfx/ozone/BUILD.gn
+++ /dev/null
@@ -1,25 +0,0 @@
-# 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.
-
-component("ozone") {
-  output_name = "gfx_ozone"
-  saources = [
-    "impl/file_surface_factory.cc",
-    "impl/file_surface_factory.h",
-    "surface_factory_ozone.cc",
-    "surface_factory_ozone.h",
-    "surface_ozone_egl.h",
-    "surface_ozone_canvas.h",
-    "overlay_candidates_ozone.cc",
-    "overlay_candidates_ozone.h",
-  ]
-
-  defines = [ "GFX_IMPLEMENTATION" ]
-
-  deps = [
-    "//base",
-    "//ui/gfx/geometry",
-    "//skia",
-  ]
-}