Prepare ClearBrowsingDataDialogFragment for browsing data counters.

chrome/browser/browsing_data/browsing_data_counter_utils.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 "chrome/browser/browsing_data/browsing_data_counter_utils.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browsing_data/autofill_counter.h"
 #include "chrome/browser/browsing_data/cache_counter.h"
@@ skipping 150 matching lines @@
                                           displayed_strings[2]);
         break;
       default:
         NOTREACHED();
     }
   }
 
   return text;
 }
 
+bool GetDeletionPreferenceFromDataType(
+    BrowsingDataType data_type, std::string* out_pref) {
+  switch (data_type) {
+    case HISTORY:
+      *out_pref = prefs::kDeleteBrowsingHistory;
+      return true;
+    case CACHE:
+      *out_pref = prefs::kDeleteCache;
+      return true;
+    case COOKIES:
+      *out_pref = prefs::kDeleteCookies;
+      return true;
+    case PASSWORDS:
+      *out_pref = prefs::kDeletePasswords;
+      return true;
+    case FORM_DATA:
+      *out_pref = prefs::kDeleteFormData;
+      return true;
+    case BOOKMARKS:
+      // Bookmarks are deleted on the Android side. No corresponding deletion
+      // preference.
+      return false;
+    case NUM_TYPES:
+      // This is not an actual type.
+      NOTREACHED();
+      return false;
+  }
+  NOTREACHED();
+  return false;
+}
+
 BrowsingDataCounter* CreateCounterForPreference(std::string pref_name) {
   if (!AreCountersEnabled())
     return nullptr;
 
   if (pref_name == prefs::kDeleteBrowsingHistory)
     return new HistoryCounter();
   if (pref_name == prefs::kDeleteCache)
     return new CacheCounter();
   if (pref_name == prefs::kDeletePasswords)
     return new PasswordsCounter();
   if (pref_name == prefs::kDeleteFormData)
     return new AutofillCounter();
 
   return nullptr;
 }