MD settings: Storage: Add DELETE button for deleting Drive offline files.

chrome/browser/ui/webui/settings/chromeos/device_storage_handler.cc

Index: chrome/browser/ui/webui/settings/chromeos/device_storage_handler.cc
diff --git a/chrome/browser/ui/webui/settings/chromeos/device_storage_handler.cc b/chrome/browser/ui/webui/settings/chromeos/device_storage_handler.cc
index 3d68dc90d9c671a8d2966b6e92d46c4d15cf470b..7e2ebbc188435ccbc6384178b2c59462682e0ad9 100644
--- a/chrome/browser/ui/webui/settings/chromeos/device_storage_handler.cc
+++ b/chrome/browser/ui/webui/settings/chromeos/device_storage_handler.cc
@@ -217,7 +217,8 @@ void StorageHandler::OnGetDriveCacheSize(int64_t size) {
   updating_drive_cache_size_ = false;
   CallJavascriptFunction("cr.webUIListenerCallback",
                          base::StringValue("storage-drive-cache-size-changed"),
-                         base::StringValue(ui::FormatBytes(size)));
+                         base::StringValue(ui::FormatBytes(size)),
+                         base::FundamentalValue(size > 0));
 }
 
 void StorageHandler::UpdateBrowsingDataSize() {