Log the creation of several more dialog box types.

chrome/browser/ui/views/external_protocol_dialog.cc

Index: chrome/browser/ui/views/external_protocol_dialog.cc
diff --git a/chrome/browser/ui/views/external_protocol_dialog.cc b/chrome/browser/ui/views/external_protocol_dialog.cc
index 2308fcbaa189ed9d12cd49d44287bf1a1a2bf97f..d3c505d1241bd74cc73a56ff65091131da54a306 100644
--- a/chrome/browser/ui/views/external_protocol_dialog.cc
+++ b/chrome/browser/ui/views/external_protocol_dialog.cc
@@ -10,6 +10,7 @@
 #include "base/strings/string_util.h"
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/tab_contents/tab_util.h"
+#include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/browser/ui/external_protocol_dialog_delegate.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/constrained_window/constrained_window_views.h"
@@ -155,4 +156,5 @@ ExternalProtocolDialog::ExternalProtocolDialog(
   // request.
   if (web_contents)
     constrained_window::ShowWebModalDialogViews(this, web_contents);
+  chrome::RecordDialogCreation(chrome::DialogIdentifier::EXTERNAL_PROTOCOL);
 }