Add a preference to clear Flash LSO data in the Clear Browsing Data dialog.

chrome/common/pref_names.h

Index: chrome/common/pref_names.h
diff --git a/chrome/common/pref_names.h b/chrome/common/pref_names.h
index 89f1c47452a0b0c1181bd16b08842c539b796d5d..d4e3fd98d233daea433d05f8f22bcedf307a4d5b 100644
--- a/chrome/common/pref_names.h
+++ b/chrome/common/pref_names.h
@@ -169,6 +169,8 @@ extern const char kDeleteCache[];
 extern const char kDeleteCookies[];
 extern const char kDeletePasswords[];
 extern const char kDeleteFormData[];
+extern const char kDeleteLSOData[];
+extern const char kClearPluginLSODataEnabled[];
 extern const char kEnableSpellCheck[];
 extern const char kEnabledLabsExperiments[];
 extern const char kEnableAutoSpellCorrect[];
@@ -212,6 +214,7 @@ extern const char kContentSettingsPatterns[];
 extern const char kBlockThirdPartyCookies[];
 extern const char kBlockNonsandboxedPlugins[];
 extern const char kClearSiteDataOnExit[];
+extern const char kClearPluginLSODataOnExit[];
 extern const char kDefaultZoomLevel[];
 extern const char kPerHostZoomLevels[];
 extern const char kAutoFillEnabled[];