Adding an Android about:flags feature for offline previews

chrome/browser/flag_descriptions.h

 // Copyright 2017 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.
 
 #ifndef CHROME_BROWSER_FLAG_DESCRIPTIONS_H_
 #define CHROME_BROWSER_FLAG_DESCRIPTIONS_H_
 
 // Includes needed for macros allowing conditional compilation of some strings.
 #include "build/build_config.h"
 #include "build/buildflag.h"
@@ skipping 1337 matching lines @@
 extern const char kEnableDataReductionProxyMainMenuDescription[];
 
 // An about:flags experiment title to enable the site breakdown on the Data
 // Saver settings page.
 extern const char kEnableDataReductionProxySiteBreakdownName[];
 
 // Describes an about:flags experiment to enable the site breakdown on the Data
 // Saver settings page.
 extern const char kEnableDataReductionProxySiteBreakdownDescription[];
 
+// An about:flags experiment title to enable offline page previews.
+extern const char kEnableOfflinePreviewsName[];
+
+// Describes an about:flags experiment to enable offline page previews.
+extern const char kEnableOfflinePreviewsDescription[];
+
 #endif  // defined(OS_ANDROID)
 
 // Name of about:flags option for LCD text.
 extern const char kLcdTextName[];
 
 // Description of about:flags option for LCD text.
 extern const char kLcdTextDescription[];
 
 // Name of about:flags option for distance field text.
 extern const char kDistanceFieldTextName[];
@@ skipping 2017 matching lines @@
 extern const char kEnableHeapProfilingTaskProfiler[];
 
 // Name and description of the flag allowing the usage of a small set of
 // server-side suggestions in NTP tiles.
 extern const char kUseSuggestionsEvenIfFewFeatureName[];
 extern const char kUseSuggestionsEvenIfFewFeatureDescription[];
 
 }  // namespace flag_descriptions
 
 #endif  // CHROME_BROWSER_FLAG_DESCRIPTIONS_H_