Remove profile-based per-host & default zoom level migration code.

chrome/common/pref_names.h

 // Copyright (c) 2012 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.
 
 // Constants for the names of various preferences, for easier changing.
 
 #ifndef CHROME_COMMON_PREF_NAMES_H_
 #define CHROME_COMMON_PREF_NAMES_H_
 
 #include <stddef.h>
@@ skipping 315 matching lines @@
 extern const char kDefaultBrowserSettingEnabled[];
 #if defined(OS_MACOSX)
 extern const char kShowUpdatePromotionInfoBar[];
 #endif
 extern const char kUseCustomChromeFrame[];
 #if !defined(OS_ANDROID)
 extern const char kContentSettingsPluginWhitelist[];
 #endif
 extern const char kClearSiteDataOnExit[];
 extern const char kPartitionDefaultZoomLevel[];
-extern const char kDefaultZoomLevelDeprecated[];
 extern const char kPartitionPerHostZoomLevels[];
-extern const char kPerHostZoomLevelsDeprecated[];
 extern const char kAutofillDialogAutofillDefault[];
 extern const char kAutofillDialogPayWithoutWallet[];
 extern const char kAutofillDialogWalletLocationAcceptance[];
 extern const char kAutofillDialogSaveData[];
 extern const char kAutofillDialogWalletShippingSameAsBilling[];
 extern const char kAutofillGeneratedCardBubbleTimesShown[];
 #if defined(OS_ANDROID)
 extern const char kAutofillDialogDefaults[];
 #endif
 
@@ skipping 463 matching lines @@
 
 #if defined(ENABLE_EXTENSIONS)
 extern const char kAnimationPolicy[];
 #endif
 
 extern const char kBackgroundTracingLastUpload[];
 
 }  // namespace prefs
 
 #endif  // CHROME_COMMON_PREF_NAMES_H_