Implement "Autofill form data" import for Firefox

components/autofill/core/browser/webdata/autofill_webdata.h

Index: components/autofill/core/browser/webdata/autofill_webdata.h
diff --git a/components/autofill/core/browser/webdata/autofill_webdata.h b/components/autofill/core/browser/webdata/autofill_webdata.h
index fbd4107b894ab21ec2b407421828f7a9907f2dcf..4b9daeae094dca17c8474c0faf18731de5f5fa74 100644
--- a/components/autofill/core/browser/webdata/autofill_webdata.h
+++ b/components/autofill/core/browser/webdata/autofill_webdata.h
@@ -23,6 +23,7 @@ class WebDataServiceConsumer;
 
 namespace autofill {
 
+class AutofillEntry;
 class AutofillProfile;
 class CreditCard;
 struct FormFieldData;
@@ -75,6 +76,10 @@ class AutofillWebData {
   virtual WebDataServiceBase::Handle GetAutofillProfiles(
       WebDataServiceConsumer* consumer) = 0;
 
+  // Schedules a task to update autofill entries in the web database.
+  virtual void UpdateAutofillEntries(
+      const std::vector<AutofillEntry>& autofill_entries) = 0;
+
   // Schedules a task to add credit card to the web database.
   virtual void AddCreditCard(const CreditCard& credit_card) = 0;