[ios] Remove -topPresentedViewController from -showSyncPassphraseSettings

Bug: 
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I5c16acac7b8528e231f8f2d0e8e72514bd296b22
Reviewed-on: https://chromium-review.googlesource.com/753867
Commit-Queue: edchin <[email protected]>
Reviewed-by: Mark Cogan <[email protected]>
Reviewed-by: edchin <[email protected]>
Cr-Commit-Position: refs/heads/master@{#514218}
diff --git a/ios/chrome/browser/ui/browser_view_controller.mm b/ios/chrome/browser/ui/browser_view_controller.mm
index aab77ea..51b5a406 100644
--- a/ios/chrome/browser/ui/browser_view_controller.mm
+++ b/ios/chrome/browser/ui/browser_view_controller.mm
@@ -5378,7 +5378,7 @@
 }
 
 - (void)showSyncPassphraseSettings {
-  [self.dispatcher showSyncPassphraseSettings];
+  [self.dispatcher showSyncPassphraseSettingsFromViewController:self];
 }
 
 @end