Make full-form autofill the only implementation on iOS.

components/autofill/ios/browser/js_autofill_manager.h

Index: components/autofill/ios/browser/js_autofill_manager.h
diff --git a/components/autofill/ios/browser/js_autofill_manager.h b/components/autofill/ios/browser/js_autofill_manager.h
index a1a797a941faabdda41e09ecf7d6895ef2d37e39..6b957ca71e8b3b85fab7fe084c594a41df13f309 100644
--- a/components/autofill/ios/browser/js_autofill_manager.h
+++ b/components/autofill/ios/browser/js_autofill_manager.h
@@ -23,17 +23,8 @@
                                completionHandler:
                                    (void (^)(NSString*))completionHandler;
 
-// Stores the current active element. This is used to make the element active
-// again in case the web view loses focus when a dialog is presented over it.
-- (void)storeActiveElement;
-
-// Clears the current active element.
-- (void)clearActiveElement;
-
 // Fills the data in JSON string |dataString| into the active form field, then
-// executes the |completionHandler|. The active form field is either
-// document.activeElement or the field stored by a call to storeActiveElement.
-// non-null.
+// executes the |completionHandler|.
 - (void)fillActiveFormField:(NSString*)dataString
           completionHandler:(ProceduralBlock)completionHandler;