Change profile name textfield behaviour on tab

chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <Cocoa/Cocoa.h>
 #import <Carbon/Carbon.h>  // kVK_Return.
 
 #import "chrome/browser/ui/cocoa/profiles/profile_chooser_controller.h"
 
 #include "base/mac/bundle_locations.h"
@@ skipping 718 matching lines @@
   base::string16 newProfileName =
       base::SysNSStringToUTF16([profileNameTextField_ stringValue]);
 
   // Empty profile names are not allowed, and do nothing.
   base::TrimWhitespace(newProfileName, base::TRIM_ALL, &newProfileName);
   if (!newProfileName.empty()) {
     profiles::UpdateProfileName(profile_, newProfileName);
     [controller_
         postActionPerformed:ProfileMetrics::PROFILE_DESKTOP_MENU_EDIT_NAME];
     [profileNameTextField_ setHidden:YES];
-    // This needs to be called async as the firstResponder is reset
-    // at the same time that controlTextDidEndEditing happens.
-    dispatch_async(dispatch_get_main_queue(), ^{
-      [[self window] makeFirstResponder:nil];
-    });
   }
 }
 
 - (void)showEditableView:(id)sender {
   [profileNameTextField_ setHidden:NO];
   [[self window] makeFirstResponder:profileNameTextField_];
 }
 
 - (BOOL)canBecomeKeyView {
   return false;
 }
 
-- (void)controlTextDidEndEditing:(NSNotification*)notification {
-  [self saveProfileName];
+- (BOOL)control:(NSControl*)control

[groby-ooo-7-16, 2015/03/10 23:58:56]

What if I _click_ outside of the text field?

+               textView:(NSTextView*)textView
+    doCommandBySelector:(SEL)commandSelector {
+  if (commandSelector == @selector(insertTab:) ||
+      commandSelector == @selector(insertNewline:)) {
+    [self saveProfileName];
+    return YES;
+  }
+  return NO;
 }
 
 @end
 
 // A custom button that allows for setting a background color when hovered over.
 @interface BackgroundColorHoverButton : HoverImageButton {
  @private
   base::scoped_nsobject<NSColor> backgroundColor_;
   base::scoped_nsobject<NSColor> hoverColor_;
 }
@@ skipping 1538 matching lines @@
 }
 
 - (bool)shouldShowGoIncognito {
   bool incognitoAvailable =
       IncognitoModePrefs::GetAvailability(browser_->profile()->GetPrefs()) !=
           IncognitoModePrefs::DISABLED;
   return incognitoAvailable && !browser_->profile()->IsGuestSession();
 }
 
 @end