Properly detect if Chrome is incognito

ios/chrome/browser/ui/webui/ntp_tiles_internals_ui.cc

Index: ios/chrome/browser/ui/webui/ntp_tiles_internals_ui.cc
diff --git a/ios/chrome/browser/ui/webui/ntp_tiles_internals_ui.cc b/ios/chrome/browser/ui/webui/ntp_tiles_internals_ui.cc
index c36e931e5feb725364f69e8e4331433b69d618bc..5f39a6945cb507b37994ad2449534c89141cf003 100644
--- a/ios/chrome/browser/ui/webui/ntp_tiles_internals_ui.cc
+++ b/ios/chrome/browser/ui/webui/ntp_tiles_internals_ui.cc
@@ -57,7 +57,7 @@ void IOSNTPTilesInternalsMessageHandlerBridge::RegisterMessages() {
 
 bool IOSNTPTilesInternalsMessageHandlerBridge::SupportsNTPTiles() {
   auto* state = ios::ChromeBrowserState::FromWebUIIOS(web_ui());
-  return !state->HasOffTheRecordChromeBrowserState();
+  return state == state->GetOriginalChromeBrowserState();

[sdefresne, 2017/01/19 12:14:07]

Why not just use IsOffTheRecord() instead?

  auto* state = ios::ChromeBrowserState::FromWebUIIOS(web_ui());
  return state->IsOffTheRecord();

 }
 
 bool IOSNTPTilesInternalsMessageHandlerBridge::DoesSourceExist(