Mac: Enable delegated renderer by default

content/browser/cocoa/system_hotkey_map.h

-// Copyright 2014 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.
-
-#ifndef CONTENT_BROWSER_COCOA_SYSTEM_HOTKEY_MAP_H_
-#define CONTENT_BROWSER_COCOA_SYSTEM_HOTKEY_MAP_H_
-
-#import <Cocoa/Cocoa.h>
-#include <vector>
-
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-struct SystemHotkey;
-
-// Maintains a listing of all OSX system hotkeys. e.g. (cmd + `) These hotkeys
-// should have higher priority than web content, so NSEvents that correspond to
-// a system hotkey should not be passed to the renderer.
-class CONTENT_EXPORT SystemHotkeyMap {
- public:
-  SystemHotkeyMap();
-  ~SystemHotkeyMap();
-
-  // Converts the plist stored in |data| into an NSDictionary. Returns nil on
-  // error.
-  static NSDictionary* DictionaryFromData(NSData* data);
-
-  // Parses the property list data commonly stored at
-  // ~/Library/Preferences/com.apple.symbolichotkeys.plist
-  // Returns false on encountering an irrecoverable error.
-  // Can be called multiple times. Only the results from the most recent
-  // invocation are stored.
-  bool ParseDictionary(NSDictionary* dictionary);
-
-  // Whether the event corresponds to a hotkey that has been reserved by the
-  // system.
-  bool IsEventReserved(NSEvent* event) const;
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(SystemHotkeyMapTest, Parse);
-
-  // Whether the hotkey has been reserved by the user.
-  bool IsHotkeyReserved(int key_code, int modifiers) const;
-
-  // Create at least one record of a hotkey that is reserved by the user.
-  // Certain system hotkeys automatically reserve multiple key combinations.
-  void ReserveHotkey(int key_code, int modifiers, NSString* system_effect);
-
-  // Create a record of a hotkey that is reserved by the user.
-  void ReserveHotkey(int key_code, int modifiers);
-
-  std::vector<SystemHotkey> system_hotkeys_;
-
-  DISALLOW_COPY_AND_ASSIGN(SystemHotkeyMap);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_COCOA_SYSTEM_HOTKEY_MAP_H_