Adds the option of aligning the launcher to the left or right. There

chrome/browser/ui/views/ash/launcher/launcher_context_menu.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/views/ash/launcher/launcher_context_menu.h"
 
 #include "ash/launcher/launcher_context_menu.h"
 #include "ash/shell.h"
+#include "base/command_line.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/ui/views/ash/launcher/chrome_launcher_controller.h"
+#include "chrome/common/chrome_switches.h"
+#include "grit/ash_strings.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 LauncherContextMenu::LauncherContextMenu(ChromeLauncherController* controller,
                                          const ash::LauncherItem* item)
     : ui::SimpleMenuModel(NULL),
       controller_(controller),
       item_(item ? *item : ash::LauncherItem()) {
   set_delegate(this);
 
@@ skipping 29 matching lines @@
       AddItem(MENU_OPEN, controller->GetTitle(item_));
       if (controller->IsOpen(item_.id)) {
         AddItem(MENU_CLOSE,
                 l10n_util::GetStringUTF16(IDS_LAUNCHER_CONTEXT_MENU_CLOSE));
       }
     }
     AddSeparator();
   }
   AddCheckItemWithStringId(
       MENU_AUTO_HIDE, ash::LauncherContextMenu::GetAutoHideResourceStringId());
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kShowLauncherAlignmentMenu)) {
+    AddSubMenuWithStringId(MENU_ALIGNMENT_MENU,
+                           IDS_AURA_LAUNCHER_CONTEXT_MENU_POSITION,
+                           &alignment_menu_);
+  }
 }
 
 LauncherContextMenu::~LauncherContextMenu() {
 }
 
 bool LauncherContextMenu::IsCommandIdChecked(int command_id) const {
   switch (command_id) {
     case LAUNCH_TYPE_PINNED_TAB:
       return controller_->GetLaunchType(item_.id) ==
           ExtensionPrefs::LAUNCH_PINNED;
@@ skipping 54 matching lines @@
     case MENU_AUTO_HIDE:
       controller_->SetAutoHideBehavior(
           ash::LauncherContextMenu::GetToggledAutoHideBehavior());
       break;
     case MENU_NEW_WINDOW:
       controller_->CreateNewWindow();
       break;
     case MENU_NEW_INCOGNITO_WINDOW:
       controller_->CreateNewIncognitoWindow();
       break;
+    case MENU_ALIGNMENT_MENU:
+      break;
   }
 }