Break //ui/gl/ dependency on //ui/ozone.

ui/ozone/BUILD.gn

 # 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.
 
 import("//build/config/ui.gni")
 import("//ui/ozone/ozone.gni")
 import("//testing/test.gni")
 
 assert(use_ozone)
 
@@ skipping 96 matching lines @@
     "//ui/gfx/ipc",
     "//ui/gfx/ipc/geometry",
     "//ui/gfx/ipc/skia",
   ]
 
   visibility += [
     # Everyone should depend on //ui/ozone instead except a handful of
     # things that would otherwise create a cycle.
     "//ui/base",
     "//ui/events/ozone/*",
+    "//ui/ozone/gl",
     "//ui/ozone/platform/*",
     "//ui/ozone/common/*",
   ]
 }
 
 source_set("platform") {
   sources = [
     "common/stub_client_native_pixmap_factory.cc",
     "common/stub_client_native_pixmap_factory.h",
     "platform_selection.cc",
@@ skipping 17 matching lines @@
   public_deps = [
     ":ozone_base",
     "//base",
     "//ipc",
     "//skia",
     "//ui/display/types",
     "//ui/events",
     "//ui/events/devices",
     "//ui/gfx",
     "//ui/gfx/geometry",
+    "//ui/ozone/gl",
     "//ui/platform_window",
   ]
 
   deps = [
     ":generate_constructor_list",
     ":generate_ozone_platform_list",
   ]
 
   deps += ozone_platform_deps
 
@@ skipping 69 matching lines @@
     "//ui/gfx/geometry",
   ]
 
   # Add tests of platform internals.
   deps += ozone_platform_test_deps
 
   # Platform tests link ozone statically. Make sure we're not getting a
   # 2nd copy of any code via the component.
   assert_no_deps = [ "//ui/ozone" ]
 }