collect windows from mru_list in workspace_controller.

ash/app_list/app_list_presenter_delegate.cc

 // 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.
 
 #include "ash/app_list/app_list_presenter_delegate.h"
 
 #include "ash/ash_switches.h"
 #include "ash/public/cpp/shelf_types.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_util.h"
 #include "ash/shelf/app_list_button.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/wm/maximize_mode/maximize_mode_controller.h"
+#include "ash/wm/window_state.h"
 #include "base/command_line.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_features.h"
 #include "ui/app_list/app_list_switches.h"
 #include "ui/app_list/presenter/app_list_presenter_impl.h"
 #include "ui/app_list/presenter/app_list_view_delegate_factory.h"
 #include "ui/app_list/views/app_list_view.h"
 #include "ui/aura/window.h"
 #include "ui/events/event.h"
 #include "ui/keyboard/keyboard_controller.h"
@@ skipping 84 matching lines @@
 
   view->Initialize(container, current_apps_page,
                    Shell::Get()
                        ->maximize_mode_controller()
                        ->IsMaximizeModeWindowManagerEnabled(),
                    IsSideShelf(root_window));
 
   if (!app_list::features::IsFullscreenAppListEnabled()) {
     view->MaybeSetAnchorPoint(GetCenterOfDisplayForWindow(
         root_window, GetMinimumBoundsHeightForAppList(view)));
+  } else {
+    wm::GetWindowState(view->GetWidget()->GetNativeWindow())
+        ->set_ignored_by_shelf(!IsSideShelf(root_window));

[oshima, 2017/07/13 00:21:54]

we should always set this to true, to keep the same behavior even for current
app list.

[Muyuan, 2017/07/13 01:41:41]

Done.

   }
   keyboard::KeyboardController* keyboard_controller =
       keyboard::KeyboardController::GetInstance();
   if (keyboard_controller)
     keyboard_controller->AddObserver(this);
   Shell::Get()->AddPreTargetHandler(this);
 
   // By setting us as DnD recipient, the app list knows that we can
   // handle items.
   Shelf* shelf = Shelf::ForWindow(root_window);
@@ skipping 120 matching lines @@
 }
 
 void AppListPresenterDelegate::OnMaximizeModeEnded() {
   if (!app_list::features::IsFullscreenAppListEnabled())
     return;
 
   view_->OnMaximizeModeChanged(false);
 }
 
 }  // namespace ash