Adding an Android about:flags feature for offline previews

chrome/browser/flag_descriptions.cc

 // 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.
 
 #include "chrome/browser/flag_descriptions.h"
 
 namespace flag_descriptions {
 
 //  Material Design version of chrome://bookmarks
 
@@ skipping 1193 matching lines @@
 
 const char kEnableDataReductionProxyMainMenuDescription[] =
     "Enables the Data Saver footer in the main menu";
 
 const char kEnableDataReductionProxySiteBreakdownName[] =
     "Data Saver Site Breakdown";
 
 const char kEnableDataReductionProxySiteBreakdownDescription[] =
     "Enable the site breakdown on the Data Saver settings page.";
 
+const char kEnableOfflinePreviewsName[] = "Offline Page Previews";
+
+const char kEnableOfflinePreviewsDescription[] =
+    "Enable showing offline page previews on slow networks.";
+
 #endif  // defined(OS_ANDROID)
 
 const char kLcdTextName[] = "LCD text antialiasing";
 
 const char kLcdTextDescription[] =
     "If disabled, text is rendered with grayscale antialiasing instead of "
     "LCD (subpixel) when doing accelerated compositing.";
 
 const char kDistanceFieldTextName[] = "Distance field text";
 
@@ skipping 1892 matching lines @@
 const char kEnableHeapProfilingTaskProfiler[] = "Enabled (task mode)";
 
 const char kUseSuggestionsEvenIfFewFeatureName[] =
     "Disable minimum for server-side tile suggestions on NTP.";
 
 const char kUseSuggestionsEvenIfFewFeatureDescription[] =
     "Request server-side suggestions even if there are only very few of them "
     "and use them for tiles on the New Tab Page.";
 
 }  // namespace flag_descriptions