[Mac] Enable "Edit Search Engines" in Omnibox context menu.

chrome/browser/cocoa/browser_window_cocoa.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 "base/gfx/rect.h"
 #include "base/logging.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_utils.h"
 #include "chrome/browser/cocoa/browser_window_cocoa.h"
 #import "chrome/browser/cocoa/browser_window_controller.h"
 #import "chrome/browser/cocoa/clear_browsing_data_controller.h"
 #import "chrome/browser/cocoa/download_shelf_controller.h"
+#import "chrome/browser/cocoa/keyword_editor_cocoa_controller.h"
 #include "chrome/browser/cocoa/page_info_window_mac.h"
 #include "chrome/browser/cocoa/task_manager_mac.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/download/download_shelf.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
 #include "chrome/common/temp_scaffolding_stubs.h"
 #include "chrome/browser/profile.h"
 
@@ skipping 227 matching lines @@
       [[ClearBrowsingDataController alloc]
           initWithProfile:browser_->profile()]);
   [controller runModalDialog];
 }
 
 void BrowserWindowCocoa::ShowImportDialog() {
   NOTIMPLEMENTED();
 }
 
 void BrowserWindowCocoa::ShowSearchEnginesDialog() {
-  NOTIMPLEMENTED();
+  [KeywordEditorCocoaController showKeywordEditor:browser_->profile()];
 }
 
 void BrowserWindowCocoa::ShowPasswordManager() {
   NOTIMPLEMENTED();
 }
 
 void BrowserWindowCocoa::ShowSelectProfileDialog() {
   NOTIMPLEMENTED();
 }
 
@@ skipping 69 matching lines @@
       break;
   }
 }
 
 void BrowserWindowCocoa::DestroyBrowser() {
   [controller_ destroyBrowser];
 
   // at this point the controller is dead (autoreleased), so
   // make sure we don't try to reference it any more.
 }