Make password generation switched by a preference in chrome settings rather than a command line fla…

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 0e0d35504ca2a7f44edda6faa6a2c35e056a40e2..3e8f00dfb9847918dd28de6f41c818730e3a7ace 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -267,6 +267,9 @@ const char kPasswordManagerEnabled[] = "profile.password_manager_enabled";
 const char kPasswordManagerAllowShowPasswords[] =
     "profile.password_manager_allow_show_passwords";
 
+// Boolean that is true when password generation is enabled.
+const char kPasswordGenerationEnabled[] = "password_generation.enabled";
+
 // Booleans identifying whether normal and reverse auto-logins are enabled.
 const char kAutologinEnabled[] = "autologin.enabled";
 const char kReverseAutologinEnabled[] = "reverse_autologin.enabled";