[Garbled Text][Infobar] Adding infobar to suggest turning on encoding detection.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 98a8a0eff54d8b1d9baaa18e7009922dd0f8b90f..c2792a813efb9c4a0cde1bbc41541226c835b678 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -842,6 +842,9 @@ const char kAutofillPersonalDataManagerFirstRun[] = "autofill.pdm.first_run";
 // Modifying bookmarks is completely disabled when this is set to false.
 const char kEditBookmarksEnabled[] = "bookmarks.editing_enabled";
 
+// Boolean that is true when the garbled text auto fixing is enabled.
+const char kEnableAutoGarbledTextFix[] = "auto_garbled_text_fix.enabled";
+
 // Boolean that is true when the translate feature is enabled.
 const char kEnableTranslate[] = "translate.enabled";