Various extensions cleanup

Removes some unused arguments, corrects comments, fixes up includes

Change-Id: I908530b5c827c611eafb4403a6e674d25a28414b
Reviewed-on: https://chromium-review.googlesource.com/912275
Reviewed-by: Karan Bhatia <[email protected]>
Commit-Queue: Michael Giuffrida <[email protected]>
Cr-Commit-Position: refs/heads/master@{#535945}
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 3b66d349..162b70e0 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -902,8 +902,7 @@
 // TODO(michaelpg): Group with other ExtensionRegistrar::Delegate overrides
 // according to header file once diffs have settled down.
 void ExtensionService::PostActivateExtension(
-    scoped_refptr<const Extension> extension,
-    bool is_newly_added) {
+    scoped_refptr<const Extension> extension) {
   // TODO(kalman): Convert ExtensionSpecialStoragePolicy to a
   // BrowserContextKeyedService and use ExtensionRegistryObserver.
   profile_->GetExtensionSpecialStoragePolicy()->GrantRightsForExtension(