Mac: Update sheet position when bookmark bar is shown or hidden.

chrome/browser/ui/cocoa/constrained_window/constrained_window_sheet_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/constrained_window/constrained_window_sheet_controller.h"
 
 #include <map>
 
 #include "base/logging.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_sheet.h"
@@ skipping 174 matching lines @@
   ConstrainedWindowSheetInfo* info = [self findSheetInfoForSheet:sheet];
   DCHECK(info);
   if ([activeView_ isEqual:[info parentView]])
     [[info sheet] pulseSheet];
 }
 
 - (int)sheetCount {
   return [sheets_ count];
 }
 
+- (void)updateSheetPosition {
+  [self updateSheetPosition:activeView_];
+}
+
 - (ConstrainedWindowSheetInfo*)findSheetInfoForParentView:(NSView*)parentView {
   for (ConstrainedWindowSheetInfo* info in sheets_.get()) {
     if ([parentView isEqual:[info parentView]])
       return info;
   }
   return NULL;
 }
 
 - (ConstrainedWindowSheetInfo*)
     findSheetInfoForSheet:(id<ConstrainedWindowSheet>)sheet {
@@ skipping 88 matching lines @@
                 name:NSWindowDidResizeNotification
               object:parentWindow_];
 
   [parentWindow_ removeChildWindow:[info overlayWindow]];
   [[info sheet] closeSheetWithAnimation:withAnimation];
   [[info overlayWindow] close];
   [sheets_ removeObject:info];
 }
 
 @end