Add "UninstallReason" parameter to ExtensionRegistryObserver::OnExtensionUninstalled.

chrome/browser/extensions/extension_sync_service.cc

Index: chrome/browser/extensions/extension_sync_service.cc
diff --git a/chrome/browser/extensions/extension_sync_service.cc b/chrome/browser/extensions/extension_sync_service.cc
index 82d93bba1a73a2eb40bf4bad26160e517294d339..95222d401568cc787be27bfecc1f316a161ddc94 100644
--- a/chrome/browser/extensions/extension_sync_service.cc
+++ b/chrome/browser/extensions/extension_sync_service.cc
@@ -28,6 +28,7 @@
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_util.h"
+#include "extensions/browser/uninstall_reason.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_icon_set.h"
 #include "extensions/common/feature_switch.h"
@@ -450,7 +451,7 @@ bool ExtensionSyncService::ProcessExtensionSyncDataHelper(
   // Handle uninstalls first.
   if (extension_sync_data.uninstalled()) {
     if (!extension_service_->UninstallExtensionHelper(
-            extension_service_, id, ExtensionService::UNINSTALL_REASON_SYNC)) {
+            extension_service_, id, extensions::UNINSTALL_REASON_SYNC)) {
       LOG(WARNING) << "Could not uninstall extension " << id
                    << " for sync";
     }