Add an experimental permissions API for extensions.

chrome/browser/extensions/extension_service_unittest.cc

Index: chrome/browser/extensions/extension_service_unittest.cc
diff --git a/chrome/browser/extensions/extension_service_unittest.cc b/chrome/browser/extensions/extension_service_unittest.cc
index a6b896db65e791a3dfbda4afe8750b8b435017da..c4e1ff0dcb351ea83071a9ab31728a90ccdee357 100644
--- a/chrome/browser/extensions/extension_service_unittest.cc
+++ b/chrome/browser/extensions/extension_service_unittest.cc
@@ -1024,7 +1024,8 @@ TEST_F(ExtensionServiceTest, LoadAllExtensionsFromDirectorySuccess) {
   expected_patterns.ClearPatterns();
   AddPattern(&expected_patterns, "http://*.google.com/*");
   AddPattern(&expected_patterns, "https://*.google.com/*");
-  EXPECT_EQ(expected_patterns, extension->permission_set()->explicit_hosts());
+  EXPECT_EQ(expected_patterns,
+            extension->GetActivePermissions()->explicit_hosts());
 
   EXPECT_EQ(std::string(good1), loaded_[1]->id());
   EXPECT_EQ(std::string("My extension 2"), loaded_[1]->name());