new implementation of default apps

chrome/browser/extensions/default_apps.h

Index: chrome/browser/extensions/default_apps.h
diff --git a/chrome/browser/extensions/default_apps.h b/chrome/browser/extensions/default_apps.h
index 996b9cad2db29b8f193f40191f2a24b0f696bbbf..c05daf50da4bb55c131c48467ffce8a1728b1370 100644
--- a/chrome/browser/extensions/default_apps.h
+++ b/chrome/browser/extensions/default_apps.h
@@ -22,15 +22,20 @@ namespace default_apps {
 // be changed.
 enum InstallState {
   kUnknown,
-  kAlwaysProvideDefaultApps,
-  kNeverProvideDefaultApps
+  // Now unused, leave it for backward compatibility.
+  kProvideLegacyDefaultApps,
+  kNeverInstallDefaultApps,
+  kAlreadyInstalledDefaultApps
 };
 
+bool ShouldInstallInProfile(Profile* profile);
+
+bool isLocaleSupported();
+
 // Register preference properties used by default apps to maintain
 // install state.
 void RegisterUserPrefs(PrefService* prefs);
 
-
 // A specialization of the ExternalProviderImpl that conditionally installs apps
 // from the chrome::DIR_DEFAULT_APPS location based on a preference in the
 // profile.