[Mac] New avatar menu: Don't allow supervised users to edit their profile name.

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 "chrome/browser/ui/cocoa/profiles/profile_chooser_controller.h"
 
 #include "base/mac/bundle_locations.h"
 #include "base/prefs/pref_service.h"
@@ skipping 1161 matching lines @@
     NSView* linksContainer =
         [self createCurrentProfileLinksForItem:item
                                           rect:NSMakeRect(xOffset, yOffset,
                                                           availableTextWidth,
                                                           0)];
     [container addSubview:linksContainer];
     yOffset = NSMaxY([linksContainer frame]);
   }
 
   // Profile name, centered.
+  bool editingAllowed = !isGuestSession_ && !browser_->profile()->IsManaged();
   base::scoped_nsobject<EditableProfileNameButton> profileName(
       [[EditableProfileNameButton alloc]
           initWithFrame:NSMakeRect(xOffset, yOffset,
                                    availableTextWidth,
                                    kProfileButtonHeight)
                 profile:browser_->profile()
             profileName:base::SysUTF16ToNSString(
                 profiles::GetAvatarNameForProfile(browser_->profile()))
-         editingAllowed:!isGuestSession_]);
+         editingAllowed:editingAllowed]);
 
   [container addSubview:profileName];
   yOffset = NSMaxY([profileName frame]);
 
   // Profile icon, centered.
   xOffset = (kFixedMenuWidth - kLargeImageSide) / 2;
   base::scoped_nsobject<EditableProfilePhoto> iconView(
       [[EditableProfilePhoto alloc]
           initWithFrame:NSMakeRect(xOffset, yOffset,
                                    kLargeImageSide, kLargeImageSide)
@@ skipping 482 matching lines @@
       IDR_CLOSE_1_P).ToNSImage()];
   [deleteButton setTarget:self];
   [deleteButton setAction:@selector(showAccountRemovalView:)];
   [deleteButton setTag:tag];
 
   [button addSubview:deleteButton];
   return button.autorelease();
 }
 
 @end