Insert panel icons on the left of other panel icons.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_browser.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/ash/launcher/chrome_launcher_controller_per_browser.h"
 
 #include <vector>
 
 #include "ash/launcher/launcher_model.h"
 #include "ash/root_window_controller.h"
@@ skipping 365 matching lines @@
   item.status = status;
   model_->Add(item);
   return id;
 }
 
 ash::LauncherID ChromeLauncherControllerPerBrowser::CreateAppLauncherItem(
     LauncherItemController* controller,
     const std::string& app_id,
     ash::LauncherItemStatus status) {
   DCHECK(controller);
-  return InsertAppLauncherItem(controller, app_id, status,
-                               model_->item_count());
+  // Panels are inserted on the left so as not to push all existing panels over.
+  int index = controller->GetLauncherItemType() == ash::TYPE_APP_PANEL ?
+      0 : model_->item_count();
+  return InsertAppLauncherItem(controller, app_id, status, index);
 }
 
 void ChromeLauncherControllerPerBrowser::SetItemStatus(
     ash::LauncherID id,
     ash::LauncherItemStatus status) {
   int index = model_->ItemIndexByID(id);
   DCHECK_GE(index, 0);
   ash::LauncherItem item = model_->items()[index];
   item.status = status;
   model_->Set(index, item);
@@ skipping 1059 matching lines @@
     ash::LauncherID id) {
   return id_to_item_controller_map_[id]->app_id();
 }
 
 void ChromeLauncherControllerPerBrowser::
     MoveItemWithoutPinnedStateChangeNotification(int source_index,
                                                  int target_index) {
   base::AutoReset<bool> auto_reset(&ignore_persist_pinned_state_change_, true);
   model_->Move(source_index, target_index);
 }