Expose the MacViewsWebUIDialogs feature flag to chrome://flags

chrome/browser/ui/browser_dialogs.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_BROWSER_DIALOGS_H_
 #define CHROME_BROWSER_UI_BROWSER_DIALOGS_H_
 
 #include "base/callback.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/bookmarks/bookmark_editor.h"
 #include "components/security_state/security_state_model.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/native_widget_types.h"
 
 class Browser;
 class ContentSettingBubbleModel;
 class GURL;
 class LoginHandler;
 class Profile;
 
+namespace base {
+struct Feature;
+}
+
 namespace bookmarks {
 class BookmarkBubbleObserver;
 }
 
 namespace content {
 class BrowserContext;
 class ColorChooser;
 class WebContents;
 }
 
@@ skipping 10 matching lines @@
 class URLRequest;
 }
 
 namespace ui {
 class TableModel;
 class WebDialogDelegate;
 }
 
 namespace chrome {
 
+#if defined(OS_MACOSX)
+// Makes ToolkitViewsWebUIDialogsEnabled() available to chrome://flags.
+extern const base::Feature kMacViewsWebUIDialogs;
+#endif  // OS_MACOSX
+
 // Shows or hides the Task Manager. |browser| can be NULL when called from Ash.
 // Returns a pointer to the underlying TableModel, which can be ignored, or used
 // for testing.
 ui::TableModel* ShowTaskManager(Browser* browser);
 void HideTaskManager();
 
 #if !defined(OS_MACOSX)
 // Creates and shows an HTML dialog with the given delegate and context.
 // The window is automatically destroyed when it is closed.
 // Returns the created window.
@@ skipping 21 matching lines @@
 content::ColorChooser* ShowColorChooser(content::WebContents* web_contents,
                                         SkColor initial_color);
 
 #if defined(OS_MACOSX)
 
 // For Mac, returns true if Chrome should show an equivalent toolkit-views based
 // dialog using one of the functions below, rather than showing a Cocoa dialog.
 bool ToolkitViewsDialogsEnabled();
 
 // For Mac, returns true if Chrome should show an equivalent toolkit-views based
-// dialog instead of a WebUI-styled Cocoa dialog. ToolkitViewsDialogsEnabled()
-// implies ToolkitViewsWebUIDialogsEnabled().
+// dialog instead of a WebUI-styled Cocoa dialog.
 bool ToolkitViewsWebUIDialogsEnabled();
 
 // Shows a Views website settings bubble at the given anchor point.
 void ShowWebsiteSettingsBubbleViewsAtPoint(
     const gfx::Point& anchor_point,
     Profile* profile,
     content::WebContents* web_contents,
     const GURL& url,
     const security_state::SecurityStateModel::SecurityInfo& security_info);
 
@@ skipping 39 matching lines @@
   DISALLOW_IMPLICIT_CONSTRUCTORS(ContentSettingBubbleViewsBridge);
 };
 
 #endif  // OS_MACOSX
 
 #endif  // TOOLKIT_VIEWS
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_BROWSER_DIALOGS_H_