Componentize enhanced_bookmark_features.{h,cc}.

chrome/browser/bookmarks/enhanced_bookmarks_features.cc

-// Copyright 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.
-
-#include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
-
-#include <string>
-
-#include "base/command_line.h"
-#include "base/prefs/pref_service.h"
-#include "build/build_config.h"
-#include "chrome/common/chrome_switches.h"
-#include "components/variations/variations_associated_data.h"
-
-namespace {
-
-const char kFieldTrialName[] = "EnhancedBookmarks";
-
-}  // namespace
-
-bool IsEnhancedBookmarksEnabled() {
-  // Enhanced bookmarks is not used on desktop, so it shouldn't be calling this
-  // function.
-#if !defined(OS_IOS) && !defined(OS_ANDROID)
-  NOTREACHED();
-#endif  // !defined(OS_IOS) || !defined(OS_ANDROID)
-
-  // kEnhancedBookmarksExperiment flag could have values "", "1" and "0".  "" -
-  // default, "0" - user opted out, "1" - user opted in.  Tests also use the
-  // command line flag to force enhanced bookmark to be on.
-  std::string switch_value =
-      base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kEnhancedBookmarksExperiment);
-  if (switch_value == "1")
-    return true;
-  if (switch_value == "0")
-    return false;
-
-  // Check that the "id" param is present. This is a legacy of the desktop
-  // implementation providing the extension id via param. This probably should
-  // be replaced with code that checks the experiment name instead.
-  return !variations::GetVariationParamValue(kFieldTrialName, "id").empty();
-}
-
-bool IsEnableDomDistillerSet() {
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableDomDistiller)) {
-    return true;
-  }
-  if (variations::GetVariationParamValue(kFieldTrialName,
-                                         "enable-dom-distiller") == "1")
-    return true;
-
-  return false;
-}
-
-bool IsEnableSyncArticlesSet() {
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableSyncArticles)) {
-    return true;
-  }
-  if (variations::GetVariationParamValue(kFieldTrialName,
-                                         "enable-sync-articles") == "1")
-    return true;
-
-  return false;
-}