Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/extensions/api/storage/settings_apitest.cc

Index: chrome/browser/extensions/api/storage/settings_apitest.cc
diff --git a/chrome/browser/extensions/api/storage/settings_apitest.cc b/chrome/browser/extensions/api/storage/settings_apitest.cc
index 2cf74da8c216c46f1f29f987a086bd0f6fae8884..688bb96d9ed6da35f2b2bb814d23e960d360f692 100644
--- a/chrome/browser/extensions/api/storage/settings_apitest.cc
+++ b/chrome/browser/extensions/api/storage/settings_apitest.cc
@@ -12,12 +12,12 @@
 #include "chrome/browser/extensions/api/storage/settings_sync_util.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/extension_system_factory.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/ui_test_utils.h"
+#include "extensions/browser/extension_system.h"
 #include "extensions/common/value_builder.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_change_processor.h"
@@ -459,7 +459,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionSettingsApiTest, ExtensionsSchemas) {
   // Verifies that the Schemas for the extensions domain are created on startup.
   Profile* profile = browser()->profile();
   ExtensionSystem* extension_system =
-      ExtensionSystemFactory::GetForProfile(profile);
+      ExtensionSystemFactory::GetForBrowserContext(profile);

[James Cook, 2014/01/28 23:40:57]

Maybe just ExtensionSystem::Get(profile)?

[Yoyo Zhou, 2014/01/29 00:42:56]

Done.

   if (!extension_system->ready().is_signaled()) {
     // Wait until the extension system is ready.
     base::RunLoop run_loop;