[Mac] Add system share menu

chrome/browser/ui/cocoa/share_menu_controller.h

Index: chrome/browser/ui/cocoa/share_menu_controller.h
diff --git a/chrome/browser/ui/cocoa/share_menu_controller.h b/chrome/browser/ui/cocoa/share_menu_controller.h
new file mode 100644
index 0000000000000000000000000000000000000000..10af470487193834d25307ca7d3ef525ba1f964f
--- /dev/null
+++ b/chrome/browser/ui/cocoa/share_menu_controller.h
@@ -0,0 +1,20 @@
+// Copyright 2017 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 CHROME_BROWSER_UI_COCOA_SHARE_MENU_CONTROLLER_H_
+#define CHROME_BROWSER_UI_COCOA_SHARE_MENU_CONTROLLER_H_
+
+#import <Cocoa/Cocoa.h>
+
+@interface ShareMenuController

[Robert Sesek, 2017/06/28 15:37:54]

Class needs a comment. How should a client use this (e.g., "Set this as the
delegate of a menu to populate with potential sharing service items.").

[lgrey, 2017/06/29 21:11:50]

Done.

+    : NSObject<NSMenuDelegate, NSSharingServiceDelegate>
+@end
+
+@interface ShareMenuController (ExposedForTesting)
+// Whether the menu should add a "More..." item that opens the
+// Sharing Extension pref pane.
++ (BOOL)shouldShowMoreItem;
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_SHARE_MENU_CONTROLLER_H_