[unity] Use HISTORY_DELETE_DIRECTIVES to check whether history sync is enabled.

Sync model type TYPED_URLS can be enabled only if the user has encryption,
while HISTORY_DELETE_DIRECTIVES cannot be enabled then. So in order to check
whether the user is sending history to google in a readable way,
HISTORY_DELETE_DIRECTIVES is the better one.

This CL changes the URL-keyed anonymized data collection helper to use
HISTORY_DELETE_DIRECTIVES.

Bug: 823809
Change-Id: Ideb0a6129750f7e0e122e82a0c932aa6acd7bdc6
Reviewed-on: https://chromium-review.googlesource.com/1122118Reviewed-by: Thomas Tangl <tangltom@chromium.org>
Commit-Queue: Mihai Sardarescu <msarda@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572152}

components/unified_consent/url_keyed_anonymized_data_collection_consent_helper.cc

@@ -81,9 +81,9 @@ SyncBasedUrlKeyedDataCollectionConsentHelper::
     SyncBasedUrlKeyedDataCollectionConsentHelper(
         syncer::SyncService* sync_service)
     : sync_service_(sync_service),
-      sync_history_upload_state_(
-          syncer::GetUploadToGoogleState(sync_service_,
-                                         syncer::ModelType::TYPED_URLS)) {
+      sync_history_upload_state_(syncer::GetUploadToGoogleState(
+          sync_service_,
+          syncer::ModelType::HISTORY_DELETE_DIRECTIVES)) {
   DCHECK(sync_service_);
   sync_service_->AddObserver(this);
 }
@@ -103,7 +103,7 @@ void SyncBasedUrlKeyedDataCollectionConsentHelper::OnStateChanged(
   DCHECK_EQ(sync_service_, sync_service);
   bool enabled_before_state_updated = IsEnabled();
   sync_history_upload_state_ = syncer::GetUploadToGoogleState(
-      sync_service_, syncer::ModelType::TYPED_URLS);
+      sync_service_, syncer::ModelType::HISTORY_DELETE_DIRECTIVES);
 
   if (enabled_before_state_updated != IsEnabled())
     FireOnStateChanged();