cc: Fix draw transform computation for non-drawn layers

cc/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("//testing/test.gni")
 
 component("cc") {
   sources = [
     "animation/animation.cc",
     "animation/animation.h",
@@ skipping 560 matching lines @@
     "test/fake_external_begin_frame_source.h",
     "test/fake_impl_task_runner_provider.h",
     "test/fake_layer_tree_host.cc",
     "test/fake_layer_tree_host.h",
     "test/fake_layer_tree_host_client.cc",
     "test/fake_layer_tree_host_client.h",
     "test/fake_layer_tree_host_impl.cc",
     "test/fake_layer_tree_host_impl.h",
     "test/fake_layer_tree_host_impl_client.cc",
     "test/fake_layer_tree_host_impl_client.h",
+    "test/fake_mask_layer_impl.cc",
+    "test/fake_mask_layer_impl.h",
     "test/fake_output_surface.cc",
     "test/fake_output_surface.h",
     "test/fake_output_surface_client.cc",
     "test/fake_output_surface_client.h",
     "test/fake_painted_scrollbar_layer.cc",
     "test/fake_painted_scrollbar_layer.h",
     "test/fake_picture_layer.cc",
     "test/fake_picture_layer.h",
     "test/fake_picture_layer_impl.cc",
     "test/fake_picture_layer_impl.h",
@@ skipping 350 matching lines @@
     "//ui/gl",
     "//ui/gl:test_support",
   ]
 
   if (is_android) {
     isolate_file = "cc_perftests.isolate"
   }
 }
 # When adding support for isolates, please have a look at run-time dependencies
 # in the cc_unittests_run target in cc_tests.gyp.