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

chrome/browser/cocoa/keyword_editor_cocoa_controller.h

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_ptr.h"
 #include "chrome/browser/search_engines/edit_search_engine_controller.h"
 #include "chrome/browser/search_engines/keyword_editor_controller.h"
 #include "chrome/browser/search_engines/template_url_model.h"
@@ skipping 37 matching lines @@
   IBOutlet NSButton* addButton_;
   IBOutlet NSButton* removeButton_;
   IBOutlet NSButton* makeDefaultButton_;
 
   Profile* profile_;  // weak
   scoped_ptr<KeywordEditorController> controller_;
   scoped_ptr<KeywordEditorModelObserver> observer_;
 }
 @property (readonly) KeywordEditorController* controller;
 
-- (id)initWithProfile:(Profile*)profile;
+// Show the keyword editor associated with the given profile (or the
+// original profile if this is an incognito profile).  If no keyword
+// editor exists for this profile, create one and show it.  Any
+// resulting editor releases itself when closed.
++ (void)showKeywordEditor:(Profile*)profile;
 
 // Message forwarded by KeywordEditorModelObserver.
 - (void)modelChanged;
 
 - (IBAction)addKeyword:(id)sender;
 - (IBAction)deleteKeyword:(id)sender;
 - (IBAction)makeDefault:(id)sender;
 
 @end
+
+@interface KeywordEditorCocoaController (TestingAPI)
+
+// Instances of this class are managed, use +showKeywordEditor:.
+- (id)initWithProfile:(Profile*)profile;
+
+// Returns a reference to the shared instance for the given profile,
+// or nil if there is none.
++ (KeywordEditorCocoaController*)sharedInstanceForProfile:(Profile*)profile;
+
+@end