Move sky_viewer into services/sky

sky/viewer/runtime_flags.cc

-// Copyright 2015 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.
-
-#include "sky/viewer/runtime_flags.h"
-
-#include "base/logging.h"
-#include "mojo/public/cpp/application/application_impl.h"
-
-namespace sky {
-namespace {
-
-bool initialized = false;
-RuntimeFlags flags;
-
-// Load the viewer in testing mode so we can dump pixels.
-const char kTesting[] = "--testing";
-
-}  // namespace
-
-void RuntimeFlags::Initialize(mojo::ApplicationImpl* app) {
-  DCHECK(!initialized);
-  flags.testing_ = app->HasArg(kTesting);
-  initialized = true;
-}
-
-const RuntimeFlags& RuntimeFlags::Get() {
-  DCHECK(initialized);
-  return flags;
-}
-
-}  // namespace sky