[ObjC ARC] Converts components/signin/ios/browser:browser to ARC.

components/signin/ios/browser/account_consistency_service.h

Index: components/signin/ios/browser/account_consistency_service.h
diff --git a/components/signin/ios/browser/account_consistency_service.h b/components/signin/ios/browser/account_consistency_service.h
index 1f7a1e6eb3facdf7c622fb8fe2acc5c140163f8c..b827f59ce9704a82501f2843cffd782cddce2d1f 100644
--- a/components/signin/ios/browser/account_consistency_service.h
+++ b/components/signin/ios/browser/account_consistency_service.h
@@ -181,8 +181,7 @@ class AccountConsistencyService : public KeyedService,
   base::scoped_nsobject<WKWebView> web_view_;

[msarda, 2017/06/13 13:15:30]

Should this change and be now a WKWebView*?

[marq (ping after 24h), 2017/06/15 09:27:33]

We can only do that in header files if the header isn't included in any non-ARC
targets. It looks like this one isn't used outside of this target, so it should
be OK to clean up that way.

   // Navigation delegate of |web_view_| that informs the service when a cookie
   // request has been applied.
-  base::scoped_nsobject<AccountConsistencyNavigationDelegate>
-      navigation_delegate_;
+  AccountConsistencyNavigationDelegate* navigation_delegate_;
 
   // Handlers reacting on GAIA responses with the X-Chrome-Manage-Accounts
   // header set.