mac: Crash on uncaught Objective-C exceptions routed to NSApplication

chrome/browser/chrome_browser_main_mac.mm

Index: chrome/browser/chrome_browser_main_mac.mm
diff --git a/chrome/browser/chrome_browser_main_mac.mm b/chrome/browser/chrome_browser_main_mac.mm
index 11d7ff43ffe2eca372f1ea0df596b93a7693d278..f747f4a8aa13596aa9281262a3fea88e50a0f1ee 100644
--- a/chrome/browser/chrome_browser_main_mac.mm
+++ b/chrome/browser/chrome_browser_main_mac.mm
@@ -152,14 +152,6 @@ void EnsureMetadataNeverIndexFile(const base::FilePath& user_data_dir) {
   [nib instantiateNibWithOwner:NSApp topLevelObjects:nil];
   // Make sure the app controller has been created.
   DCHECK([NSApp delegate]);
-
-  [[NSUserDefaults standardUserDefaults] registerDefaults:@{
-      // Prevent Cocoa from turning command-line arguments into
-      // |-application:openFiles:|, since we already handle them directly.
-      // @"NO" looks like a mistake, but the value really is supposed to be a
-      // string.
-      @"NSTreatUnknownArgumentsAsOpen": @"NO"
-  }];
 }
 
 void ChromeBrowserMainPartsMac::PostMainMessageLoopStart() {