Componentize enhanced_bookmark_features.{h,cc}.

ios/chrome/browser/experimental_flags.mm

 // 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.
 
 // This file can be empty. Its purpose is to contain the relatively short lived
 // definitions required for experimental flags.
 
 #include "ios/chrome/browser/experimental_flags.h"
 
 #import <Foundation/Foundation.h>
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
+#include "components/enhanced_bookmarks/enhanced_bookmark_features.h"
 #include "components/variations/variations_associated_data.h"
 #include "ios/chrome/browser/chrome_switches.h"
-#include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
 #include "ios/web/public/web_view_creation_util.h"
 
 namespace {
 NSString* const kEnableAlertOnBackgroundUpload =
     @"EnableAlertsOnBackgroundUpload";
 NSString* const kEnableBookmarkRefreshImageOnEachVisit =
     @"EnableBookmarkRefreshImageOnEachVisit";
 }  // namespace
 
 namespace experimental_flags {
 
 bool IsAlertOnBackgroundUploadEnabled() {
   return [[NSUserDefaults standardUserDefaults]
       boolForKey:kEnableAlertOnBackgroundUpload];
 }
 
 bool IsBookmarkCollectionEnabled() {
-  return ios::GetChromeBrowserProvider()->IsBookmarkCollectionEnabled();
+  return enhanced_bookmarks::IsEnhancedBookmarksEnabled();
 }
 
 bool IsBookmarkImageFetchingOnVisitEnabled() {
   if (!IsBookmarkCollectionEnabled())
     return false;
 
   NSUserDefaults* user_defaults = [NSUserDefaults standardUserDefaults];
   if ([user_defaults boolForKey:kEnableBookmarkRefreshImageOnEachVisit])
     return true;
 
@@ skipping 41 matching lines @@
   }
 
   // Parse the value.
   size_t wedge_size_in_mb = 0;
   if (base::StringToSizeT(wedge_size_string, &wedge_size_in_mb))
     return wedge_size_in_mb;
   return 0;
 }
 
 }  // namespace experimental_flags