DevTools: Add timestamp support in the console

Source/devtools/front_end/ResourceTreeModel.js

Index: Source/devtools/front_end/ResourceTreeModel.js
diff --git a/Source/devtools/front_end/ResourceTreeModel.js b/Source/devtools/front_end/ResourceTreeModel.js
index 7ea65bc655352dd5cb2371783adf0f075ae30539..31d0379ed3a3129dbbf6236f53601006ac7ccaed 100644
--- a/Source/devtools/front_end/ResourceTreeModel.js
+++ b/Source/devtools/front_end/ResourceTreeModel.js
@@ -397,10 +397,10 @@ WebInspector.ResourceTreeModel.prototype = {
     {
         switch (msg.level) {
         case WebInspector.ConsoleMessage.MessageLevel.Warning:
-            resource.warnings += msg.repeatDelta;
+            resource.warnings += 1;
             break;
         case WebInspector.ConsoleMessage.MessageLevel.Error:
-            resource.errors += msg.repeatDelta;
+            resource.errors += 1;
             break;
         }
         resource.addMessage(msg);