[win] Add a progress bar in the app launcher for app installs.

chrome/browser/ui/app_list/app_list_view_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 "chrome/browser/ui/app_list/app_list_view_delegate.h"
 
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
 #include "chrome/browser/ui/app_list/apps_model_builder.h"
 #include "chrome/browser/ui/app_list/chrome_app_list_item.h"
@@ skipping 45 matching lines @@
 
 void AppListViewDelegate::OnBeginExtensionInstall(
     const std::string& extension_id,
     const std::string& extension_name,
     const gfx::ImageSkia& installing_icon) {
   apps_builder_->OnBeginExtensionInstall(extension_id,
                                          extension_name,
                                          installing_icon);
 }
 
+void AppListViewDelegate::OnDownloadProgress(
+    const std::string& extension_id,
+    int percent_downloaded) {
+  apps_builder_->OnDownloadProgress(extension_id, percent_downloaded);
+}
+
 void AppListViewDelegate::ActivateAppListItem(
     app_list::AppListItemModel* item,
     int event_flags) {
   content::RecordAction(content::UserMetricsAction("AppList_ClickOnApp"));
   static_cast<ChromeAppListItem*>(item)->Activate(event_flags);
 }
 
 void AppListViewDelegate::StartSearch() {
   if (search_builder_.get())
     search_builder_->StartSearch();
@@ skipping 23 matching lines @@
   controller_->DismissView();
 }
 
 void AppListViewDelegate::ViewClosing() {
   controller_->ViewClosing();
 }
 
 void AppListViewDelegate::ViewActivationChanged(bool active) {
   controller_->ViewActivationChanged(active);
 }