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

chrome/browser/ui/app_list/apps_model_builder.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/apps_model_builder.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "chrome/browser/extensions/extension_prefs.h"
@@ skipping 70 matching lines @@
     const gfx::ImageSkia& installing_icon) {
   InsertApp(new ExtensionAppItem(profile_,
                                  extension_id,
                                  controller_,
                                  extension_name,
                                  installing_icon));
   highlight_app_id_ = extension_id;
   HighlightApp();
 }
 
+void AppsModelBuilder::OnDownloadProgress(const std::string& extension_id,
+                                          int percent_downloaded) {
+  int i = FindApp(extension_id);
+  if (i == -1)
+    return;
+  GetAppAt(i)->SetPercentDownloaded(percent_downloaded);
+}
+
 void AppsModelBuilder::AddApps(const ExtensionSet* extensions, Apps* apps) {
   for (ExtensionSet::const_iterator app = extensions->begin();
        app != extensions->end(); ++app) {
     if ((*app)->ShouldDisplayInAppLauncher())
       apps->push_back(new ExtensionAppItem(profile_,
                                            (*app)->id(),
                                            controller_,
                                            "",
                                            gfx::ImageSkia()));
   }
@@ skipping 158 matching lines @@
 
   ExtensionAppItem* prev = target_index > 0 ? GetAppAt(target_index - 1) : NULL;
   ExtensionAppItem* next = target_index + 1 < model_->item_count() ?
       GetAppAt(target_index + 1) : NULL;
   GetAppAt(target_index)->Move(prev, next);
 }
 
 void AppsModelBuilder::ListItemsChanged(size_t start, size_t count) {
   NOTREACHED();
 }