Revert "Add AppWindow.setVisibleOnAllWorkspaces." (https://codereview.chromium.org/469993003)

extensions/browser/app_window/app_window.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 EXTENSIONS_BROWSER_APP_WINDOW_APP_WINDOW_H_
 #define EXTENSIONS_BROWSER_APP_WINDOW_APP_WINDOW_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 162 matching lines @@
     // If true, the window will be resizable by the user. Defaults to true.
     bool resizable;
 
     // If true, the window will be focused on creation. Defaults to true.
     bool focused;
 
     // If true, the window will stay on top of other windows that are not
     // configured to be always on top. Defaults to false.
     bool always_on_top;
 
-    // If true, the window will be visible on all workspaces. Defaults to false.
-    bool visible_on_all_workspaces;
-
     // The API enables developers to specify content or window bounds. This
     // function combines them into a single, constrained window size.
     gfx::Rect GetInitialWindowBounds(const gfx::Insets& frame_insets) const;
 
     // The API enables developers to specify content or window size constraints.
     // These functions combine them so that we can work with one set of
     // constraints.
     gfx::Size GetContentMinimumSize(const gfx::Insets& frame_insets) const;
     gfx::Size GetContentMaximumSize(const gfx::Insets& frame_insets) const;
     gfx::Size GetWindowMinimumSize(const gfx::Insets& frame_insets) const;
@@ skipping 353 matching lines @@
 
   // Whether |alpha_enabled| was set in the CreateParams.
   bool requested_alpha_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(AppWindow);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_APP_WINDOW_APP_WINDOW_H_