Fix memory problems....

chrome/browser/cocoa/bookmark_bar_controller.mm

 // Copyright (c) 2009 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.
 
 #include "app/l10n_util_mac.h"
 #include "app/resource_bundle.h"
 #include "base/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_editor.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
@@ skipping 121 matching lines @@
 }
 
 - (void)showIfNeeded {
   if (browser_->profile()->GetPrefs()->GetBoolean(prefs::kShowBookmarkBar))
     [self showBookmarkBar:YES immediately:YES];
 }
 
 // Position the off-the-side chevron to the left of the otherBookmarks button.
 - (void)positionOffTheSideButton {
   NSRect frame = [offTheSideButton_ frame];
-  frame.origin.x = ([otherBookmarksButton_ frame].origin.x -
-                    (frame.size.width + bookmarks::kBookmarkHorizontalPadding));
-  [offTheSideButton_ setFrame:frame];
+  if (otherBookmarksButton_.get()) {
+    frame.origin.x = ([otherBookmarksButton_ frame].origin.x -
+                      (frame.size.width + bookmarks::kBookmarkHorizontalPadding));
+    [offTheSideButton_ setFrame:frame];
+  }
 }
 
 // Check if we should enable or disable the off-the-side chevron.
 // Assumes that buttons which don't fit in the parent view are removed
 // from it.
 //
 // TODO(jrg): when we are smarter about creating buttons (e.g. don't
 // bother creating buttons which aren't visible), we'll have to be
 // smarter here too.
 - (void)showOrHideOffTheSideButton {
@@ skipping 642 matching lines @@
   otherBookmarksButton_.reset(button);
 
   // Peg at right; keep same height as bar.
   [button setAutoresizingMask:(NSViewMinXMargin)];
   [button setCell:cell];
   [button setTarget:self];
   [button setAction:@selector(openFolderMenuFromButton:)];
   [buttonView_ addSubview:button];
 
   // Now that it's here, move the chevron over.
-  NSRect oframe = [offTheSideButton_ frame];
-  oframe.origin.x = frame.origin.x - (oframe.size.width +
-                                      bookmarks::kBookmarkHorizontalPadding);
+  [self positionOffTheSideButton];
 
   // Force it to be the right size, right now.
   [self resizeButtons];
 }
 
 // TODO(jrg): for now this is brute force.
 - (void)loaded:(BookmarkModel*)model {
   DCHECK(model == bookmarkModel_);
   if (!model->IsLoaded())
     return;
@@ skipping 83 matching lines @@
 
 - (NSButton*)offTheSideButton {
   return offTheSideButton_;
 }
 
 - (NSButton*)otherBookmarksButton {
   return otherBookmarksButton_.get();
 }
 
 @end