Correct iOS build for latest Xcode beta.

ios/web/net/clients/crw_redirect_network_client.mm

Index: ios/web/net/clients/crw_redirect_network_client.mm
diff --git a/ios/web/net/clients/crw_redirect_network_client.mm b/ios/web/net/clients/crw_redirect_network_client.mm
index 2442834abbb48200eb6b5cd411117919aa3dcf8d..ae19229d0c2ce881549e74fe6f438b614fd5dfc3 100644
--- a/ios/web/net/clients/crw_redirect_network_client.mm
+++ b/ios/web/net/clients/crw_redirect_network_client.mm
@@ -17,11 +17,6 @@
 
 @implementation CRWRedirectNetworkClient
 
-- (instancetype)init {
-  NOTREACHED();
-  return nil;
-}
-
 - (instancetype)initWithDelegate:
     (base::WeakNSProtocol<id<CRWRedirectClientDelegate>>)delegate {
   self = [super init];
@@ -35,6 +30,11 @@
   return self;
 }
 
+- (instancetype)init {
+  NOTREACHED();
+  return nil;
+}
+
 - (void)wasRedirectedToRequest:(NSURLRequest*)request
                  nativeRequest:(net::URLRequest*)nativeRequest
               redirectResponse:(NSURLResponse*)redirectResponse {