Updates to DownloadItemGtk for supporting download items marked as DANGEROUS_CONTENT.

content/browser/download/download_state_info.cc

Index: content/browser/download/download_state_info.cc
diff --git a/content/browser/download/download_state_info.cc b/content/browser/download/download_state_info.cc
index 8f2574f2048c917336db55a91e21b57d89041d26..e31b741bc51b4d7e21a091369f06ffa0648c4839 100644
--- a/content/browser/download/download_state_info.cc
+++ b/content/browser/download/download_state_info.cc
@@ -42,9 +42,9 @@ DownloadStateInfo::DownloadStateInfo(
 }
 
 bool DownloadStateInfo::IsDangerous() const {
-  // TODO(noelutz): At this point only the windows views UI supports
-  // warnings based on dangerous content.
-#ifdef OS_WIN
+  // TODO(noelutz): At this point only the windows views and Linux GTK UI
+  // supports warnings based on dangerous content.
+#if defined(OS_WIN) || defined(TOOLKIT_GTK)
   return (danger == DANGEROUS_FILE ||
           danger == DANGEROUS_URL ||
           danger == DANGEROUS_CONTENT);