Adds more BUILD.gns to ash

ash/common/test/BUILD.gn

Index: ash/common/test/BUILD.gn
diff --git a/ash/common/test/BUILD.gn b/ash/common/test/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..116703a3426fe2b8cfc7c327b85fa0ea202e7207
--- /dev/null
+++ b/ash/common/test/BUILD.gn
@@ -0,0 +1,43 @@
+# Copyright 2016 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/features.gni")

[msw, 2016/10/07 22:02:24]

ditto: please audit imports.

[sky, 2016/10/07 22:23:14]

Done.

+import("//build/config/ui.gni")
+import("//testing/test.gni")
+import("//ui/base/ui_features.gni")
+
+static_library("test_support") {
+  testonly = true
+  sources = [
+    "ash_test.cc",
+    "ash_test.h",
+    "ash_test_impl.h",
+    "material_design_controller_test_api.cc",
+    "material_design_controller_test_api.h",
+    "test_palette_delegate.cc",
+    "test_palette_delegate.h",
+    "test_session_state_delegate.cc",
+    "test_session_state_delegate.h",
+    "test_volume_control_delegate.cc",
+    "test_volume_control_delegate.h",
+  ]
+  configs += [ "//build/config:precompiled_headers" ]
+
+  public_deps = [
+    "//testing/gtest",
+  ]
+  deps = [
+    "//ash",
+    "//base",
+    "//components/signin/core/account_id:account_id",

[msw, 2016/10/07 22:02:24]

optional nit: omit redundant 'account_id' target name; ditto below

[sky, 2016/10/07 22:23:14]

Done.

+    "//components/user_manager:user_manager",
+
+    # For ui/wm/public/window_types.h, which shouldn't be in aura.

[msw, 2016/10/07 22:02:24]

nit: file a bug and/or add TODOs? (or move to ui/wm target?)

[sky, 2016/10/07 22:23:14]

Done.

+    "//ui/aura",
+    "//ui/display",
+    "//ui/gfx/geometry",
+    "//ui/views",
+    "//ui/wm",
+  ]
+}