Cleanup: Constify some ProfileKeyedBaseFactory methods and all overrides. Remove ProfileKeyedBaseFa…

chrome/browser/extensions/extension_system_factory.cc

Index: chrome/browser/extensions/extension_system_factory.cc
===================================================================
--- chrome/browser/extensions/extension_system_factory.cc	(revision 154991)
+++ chrome/browser/extensions/extension_system_factory.cc	(working copy)
@@ -51,7 +51,7 @@
   return new ExtensionSystemImpl::Shared(profile);
 }
 
-bool ExtensionSystemSharedFactory::ServiceRedirectedInIncognito() {
+bool ExtensionSystemSharedFactory::ServiceRedirectedInIncognito() const {
   return true;
 }
 
@@ -83,11 +83,11 @@
   return new ExtensionSystemImpl(profile);
 }
 
-bool ExtensionSystemFactory::ServiceHasOwnInstanceInIncognito() {
+bool ExtensionSystemFactory::ServiceHasOwnInstanceInIncognito() const {
   return true;
 }
 
-bool ExtensionSystemFactory::ServiceIsCreatedWithProfile() {
+bool ExtensionSystemFactory::ServiceIsCreatedWithProfile() const {
   return true;
 }