mash: Replace int ShelfIDs with AppLaunchID strings.

ash/mus/window_manager.cc

 // 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.
 
 #include "ash/mus/window_manager.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 72 matching lines @@
       wm_state_(base::MakeUnique<::wm::WMState>()),
       property_converter_(base::MakeUnique<aura::PropertyConverter>()) {
   property_converter_->RegisterProperty(
       kPanelAttachedKey, ui::mojom::WindowManager::kPanelAttached_Property,
       aura::PropertyConverter::CreateAcceptAnyValueCallback());
   property_converter_->RegisterProperty(
       kRenderTitleAreaProperty,
       ui::mojom::WindowManager::kRenderParentTitleArea_Property,
       aura::PropertyConverter::CreateAcceptAnyValueCallback());
   property_converter_->RegisterProperty(
+      kShelfIDKey, ui::mojom::WindowManager::kShelfID_Property,
+      aura::PropertyConverter::CreateAcceptAnyValueCallback());
+  property_converter_->RegisterProperty(
       kShelfItemTypeKey, ui::mojom::WindowManager::kShelfItemType_Property,
       base::Bind(&IsValidShelfItemType));
   property_converter_->RegisterProperty(
       ::wm::kShadowElevationKey,
       ui::mojom::WindowManager::kShadowElevation_Property,
       base::Bind(&::wm::IsValidShadowElevation));
   property_converter_->RegisterProperty(kWindowPinTypeKey,
                                         ash::mojom::kWindowPinType_Property,
                                         base::Bind(&ash::IsValidWindowPinType));
 }
@@ skipping 476 matching lines @@
 bool WindowManager::IsWindowActive(aura::Window* window) {
   return Shell::Get()->activation_client()->GetActiveWindow() == window;
 }
 
 void WindowManager::OnWmDeactivateWindow(aura::Window* window) {
   Shell::Get()->activation_client()->DeactivateWindow(window);
 }
 
 }  // namespace mus
 }  // namespace ash