Remove GetExtensionService from Profile.

chrome/browser/extensions/extension_apitest.cc

Index: chrome/browser/extensions/extension_apitest.cc
diff --git a/chrome/browser/extensions/extension_apitest.cc b/chrome/browser/extensions/extension_apitest.cc
index f70b3b12768c29246d9d2cbd02a4ed3c31b930c9..9ab6a72109ea7407ea248444f4cb01af75ef1894 100644
--- a/chrome/browser/extensions/extension_apitest.cc
+++ b/chrome/browser/extensions/extension_apitest.cc
@@ -6,8 +6,9 @@
 
 #include "base/string_util.h"
 #include "base/stringprintf.h"
-#include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/api/test/test_api.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/unpacked_installer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ -251,7 +252,8 @@ bool ExtensionApiTest::RunExtensionTestImpl(const char* extension_name,
 
 // Test that exactly one extension is loaded, and return it.
 const extensions::Extension* ExtensionApiTest::GetSingleLoadedExtension() {
-  ExtensionService* service = browser()->profile()->GetExtensionService();
+  ExtensionService* service = extensions::ExtensionSystem::Get(
+      browser()->profile())->extension_service();
 
   const extensions::Extension* extension = NULL;
   for (ExtensionSet::const_iterator it = service->extensions()->begin();