Move UI dependency from WebDataService to WebDataServiceFactory.

chrome/browser/api/webdata/autofill_web_data_service.h

Index: chrome/browser/api/webdata/autofill_web_data_service.h
diff --git a/chrome/browser/api/webdata/autofill_web_data_service.h b/chrome/browser/api/webdata/autofill_web_data_service.h
index 334daf21a58289f175968915d3df2d8b1e602718..100cefc989579a6feac8c3d526d577c5793f77e2 100644
--- a/chrome/browser/api/webdata/autofill_web_data_service.h
+++ b/chrome/browser/api/webdata/autofill_web_data_service.h
@@ -16,6 +16,10 @@ class AutofillWebDataService
     : public AutofillWebData,
       public WebDataServiceBase {
  public:
+  // TODO(joi): This should take a ProfileErrorCallback once this
+  // class doesn't simply delegate to WebDataService.
+  AutofillWebDataService();
+
   // Retrieve an AutofillWebDataService for the given context.
   //
   // Can return NULL in some contexts.