Tabs API is usable without tabs permission.

chrome/browser/extensions/extension_tabs_apitest.cc

Index: chrome/browser/extensions/extension_tabs_apitest.cc
diff --git a/chrome/browser/extensions/extension_tabs_apitest.cc b/chrome/browser/extensions/extension_tabs_apitest.cc
index c4703e18a1b85eb1734220ef7762414af2b7e93c..9e42d37c5ae0b5a5633e85ebf32699e6d21dec9c 100644
--- a/chrome/browser/extensions/extension_tabs_apitest.cc
+++ b/chrome/browser/extensions/extension_tabs_apitest.cc
@@ -224,6 +224,5 @@ IN_PROC_BROWSER_TEST_F(ExtensionApiTest, DISABLED_GetViewsOfCreatedWindow) {
 }
 
 // Adding a new test? Awesome. But API tests are the old hotness. The
-// new hotness is extension_test_utils. See extension_tabs_test.cc for
-// an example. We are trying to phase out many uses of API tests as
-// they tend to be flaky.
+// new hotness is extension_test_utils. See tabs_test.cc for an example.
+// We are trying to phase out many uses of API tests as they tend to be flaky.