Nukes the windowmanager interface

BUILD.gn

 # Copyright (c) 2013 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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 672 matching lines @@
   }
 }
 
 group("gn_mojo_targets") {
   testonly = true
   if (is_linux && !is_chromeos) {
     # TODO(GYP): Figure out if any of these should be in gn_all
     # and figure out how cross-platform they are
     deps = [
       "//chrome/browser/ui/webui/omnibox:mojo_bindings_python",
-      "//components/window_manager/public/interfaces:interfaces_python",
       "//content/public/common:mojo_bindings_python",
       "//content/common:mojo_bindings_python",
       "//content/test:web_ui_test_mojo_bindings_python",
       "//device/battery:mojo_bindings_python",
       "//device/vibration:mojo_bindings_python",
       "//ipc/mojo:ipc_mojo_perftests",
       "//ipc/mojo:client_channel_python",
       "//media/mojo/interfaces:interfaces_python",
       "//media/mojo/services:cdm_service",
       "//media/mojo:tests",
@@ skipping 204 matching lines @@
       "//ui/views:views_unittests",  # TooltipControllerTest failures
       "//ui/wm:wm_unittests",  # PASSES 4/21/2015
       "//url:url_unittests",  # PASSES 4/17/2015
 
       # TODO(GYP) nacl_integration
       # TODO(GYP) telemetry_perf_unittests
       # TODO(GYP) telemetry_unittests
     ]
   }
 }