Adding an Android about:flags feature for offline previews

chrome/browser/flag_descriptions.h

Index: chrome/browser/flag_descriptions.h
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index 29860f31d984197edfdc5747c4fe609d521741ff..5bb5e3e35dbd95895d75362c60ad7d947425ecac 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -1343,6 +1343,12 @@ extern const char kEnableDataReductionProxySiteBreakdownName[];
 // 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.