mac: Remove code that was only needed on 10.5

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.mm

 // Copyright (c) 2012 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/ui/cocoa/bookmarks/bookmark_bar_folder_controller.h"
 
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
@@ skipping 1041 matching lines @@
 - (void)addOrUpdateScrollTracking {
   [self removeScrollTracking];
   NSView* view = [[self window] contentView];
   scrollTrackingArea_.reset([[CrTrackingArea alloc]
                               initWithRect:[view bounds]
                                    options:(NSTrackingMouseMoved |
                                             NSTrackingMouseEnteredAndExited |
                                             NSTrackingActiveAlways |
                                             NSTrackingEnabledDuringMouseDrag
                                             )
-                              proxiedOwner:self
+                                     owner:self
                                   userInfo:nil]);
   [view addTrackingArea:scrollTrackingArea_.get()];
 }
 
 // Remove the tracking area associated with scrolling.
 - (void)removeScrollTracking {
   if (scrollTrackingArea_.get()) {
     [[[self window] contentView] removeTrackingArea:scrollTrackingArea_.get()];
     [scrollTrackingArea_.get() clearOwner];
   }
@@ skipping 931 matching lines @@
 
 - (void)setIgnoreAnimations:(BOOL)ignore {
   ignoreAnimations_ = ignore;
 }
 
 - (BookmarkButton*)buttonThatMouseIsIn {
   return buttonThatMouseIsIn_;
 }
 
 @end  // BookmarkBarFolderController