DevTools: Added user warning for chrome://inspect/#devices in Incognito.

chrome/browser/resources/inspect/inspect.js

Index: chrome/browser/resources/inspect/inspect.js
diff --git a/chrome/browser/resources/inspect/inspect.js b/chrome/browser/resources/inspect/inspect.js
index e18a8814760405172de360ee529d74c87717d730..0d05de021c2d0babfad705db82e41554bae4f9e6 100644
--- a/chrome/browser/resources/inspect/inspect.js
+++ b/chrome/browser/resources/inspect/inspect.js
@@ -172,6 +172,10 @@ function populateWorkerTargets(data) {
     addToWorkersList(data[i]);
 }
 
+function showIncognitoWarning() {
+  $('devices-incognito').hidden = false;
+}
+
 function populateRemoteTargets(devices) {
   if (!devices)
     return;