Support the ignored_by_shelf flag for Mus windows.

components/mus/public/interfaces/window_manager.mojom

 // Copyright 2015 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.
 
 module mus.mojom;
 
 import "components/mus/public/interfaces/event_matcher.mojom";
 import "components/mus/public/interfaces/input_events.mojom";
 import "components/mus/public/interfaces/window_manager_constants.mojom";
 import "ui/mojo/geometry/geometry.mojom";
@@ skipping 22 matching lines @@
   // The window's show state. Type: ShowState.
   const string kShowState_Property = "prop:show-state";
   // The window bounds as set by user input. Type: gfx::Rect.
   const string kUserSetBounds_Property = "prop:user-set-bounds";
   // The window's app icon. Type: SkBitmap
   const string kWindowAppIcon_Property = "prop:window-app-icon";
   // The window type. Type: mojom::WindowType
   const string kWindowType_Property = "prop:window-type";
   // The window's title. Type: mojom::String
   const string kWindowTitle_Property = "prop:window-title";
+  // A flag controlling the window's presence on the mash shelf. Type: bool
+  const string kWindowIgnoredByShelf_Property = "prop:window-ignored-by-shelf";
   // The application ID (eg. 'mojo:foo'). Type: mojom::String
   const string kAppID_Property = "prop:app-id";
 
   // When the WindowManager completes a request it must call back to
   // WindowManagerClient::WmResponse().
   WmSetBounds(uint32 change_id, uint32 window_id, mojo.Rect bounds);
   WmSetProperty(uint32 change_id,
                 uint32 window_id,
                 string name,
                 array<uint8>? value);
@@ skipping 39 matching lines @@
   WmRequestClose(uint32 window_id);
 
   // Sets the frame decoration constants of the display the window manager is
   // associated with.
   WmSetFrameDecorationValues(FrameDecorationValues values);
 
   // Response from WmCreateTopLevelWindow() informing the client of the id for
   // the new window.
   OnWmCreatedTopLevelWindow(uint32 change_id, uint32 window_id);
 };