Separate the syncing of extension settings and app settings into separate data

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 6532f0796c90507d6733e5d45ffee7f11fcc4192..fc04903b3c0668c674c075e971e88a667a8beeb7 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -245,7 +245,9 @@ ExtensionService::NaClModuleInfo::~NaClModuleInfo() {
 // ExtensionService.
 
 const char* ExtensionService::kInstallDirectoryName = "Extensions";
-const char* ExtensionService::kSettingsDirectoryName = "Extension Settings";
+const char* ExtensionService::kExtensionSettingsDirectoryName =
+    "Extension Settings";
+const char* ExtensionService::kAppSettingsDirectoryName = "App Settings";
 
 // Implements IO for the ExtensionService.