color: Add command line flag to force output color space

ui/gfx/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("//device/vr/features/features.gni")
 import("//testing/test.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 
 if (is_android) {
@@ skipping 395 matching lines @@
     "icc_profile.h",
     "skia_color_space_util.cc",
     "skia_color_space_util.h",
   ]
   public_deps = [
     ":gfx_export",
     "//base",
     "//skia",
   ]
   deps = [
+    ":switches_sources",
     "//base",
     "//skia",
   ]
   defines = [ "GFX_IMPLEMENTATION" ]
 }
 
 # Depend on this to use half_float.h without pulling in all of gfx.
 source_set("half_float") {
   sources = [
     "half_float.h",
@@ skipping 359 matching lines @@
 
 fuzzer_test("color_transform_fuzztest") {
   sources = [
     "color_transform_fuzzer.cc",
   ]
   deps = [
     ":gfx",
   ]
   libfuzzer_options = [ "max_len=1024" ]
 }