Hierarchy. Hierarchy. Hierarchy!!!

chrome/browser/cocoa/preferences_window_controller.mm

 // Copyright (c) 2010 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 "chrome/browser/cocoa/preferences_window_controller.h"
 
 #include <algorithm>
 
 #include "app/l10n_util.h"
 #include "app/l10n_util_mac.h"
@@ skipping 40 matching lines @@
 #include "grit/locale_settings.h"
 #import "third_party/GTM/AppKit/GTMUILocalizerAndLayoutTweaker.h"
 #import "third_party/GTM/AppKit/GTMNSAnimation+Duration.h"
 
 namespace {
 
 std::string GetNewTabUIURLString() {
   return URLFixerUpper::FixupURL(chrome::kChromeUINewTabURL, std::string());
 }
 
-// Helper to remove all but the last view from the view heirarchy.
+// Helper to remove all but the last view from the view hierarchy.
 void RemoveAllButLastView(NSArray* views) {
   NSArray* toRemove = [views subarrayWithRange:NSMakeRange(0, [views count]-1)];
   for (NSView* view in toRemove) {
     [view removeFromSuperviewWithoutNeedingDisplay];
   }
 }
 
 // Helper that sizes two buttons to fit in a row keeping their spacing, returns
 // the total horizontal size change.
 CGFloat SizeToFitButtonPair(NSButton* leftButton, NSButton* rightButton) {
@@ skipping 1886 matching lines @@
     case OPTIONS_PAGE_ADVANCED:
       return underTheHoodView_;
     case OPTIONS_PAGE_DEFAULT:
     case OPTIONS_PAGE_COUNT:
       LOG(DFATAL) << "Invalid page value " << page;
   }
   return basicsView_;
 }
 
 @end