Have AutofillManagerDelegate supply the AutofillWebDataService to core code.

components/autofill/core/browser/autofill_manager_delegate.h

Index: components/autofill/core/browser/autofill_manager_delegate.h
diff --git a/components/autofill/core/browser/autofill_manager_delegate.h b/components/autofill/core/browser/autofill_manager_delegate.h
index 833f1b4600ed75516ea1c3beca21553b5a4f1126..4347c2c740ab61bcba6a5f15ac838a24026f3427 100644
--- a/components/autofill/core/browser/autofill_manager_delegate.h
+++ b/components/autofill/core/browser/autofill_manager_delegate.h
@@ -25,6 +25,7 @@ namespace autofill {
 
 class AutofillMetrics;
 class AutofillPopupDelegate;
+class AutofillWebDataService;
 class CreditCard;
 class FormStructure;
 class PasswordGenerator;
@@ -47,6 +48,9 @@ class AutofillManagerDelegate {
   // Gets the PersonalDataManager instance associated with the delegate.
   virtual PersonalDataManager* GetPersonalDataManager() = 0;
 
+  // Gets the AutofillWebDataService instance associated with the delegate.
+  virtual scoped_refptr<AutofillWebDataService> GetDatabase() = 0;
+
   // Gets the preferences associated with the delegate.
   virtual PrefService* GetPrefs() = 0;