Do right-alignment of popups when WebKit indicates to do so.

chrome/browser/renderer_host/render_widget_host.cc

 // Copyright (c) 2010 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/renderer_host/render_widget_host.h"
 
 #include "base/auto_reset.h"
 #include "base/histogram.h"
 #include "base/keyboard_codes.h"
 #include "base/message_loop.h"
@@ skipping 899 matching lines @@
 }
 
 #elif defined(OS_MACOSX)
 
 void RenderWidgetHost::OnMsgShowPopup(
     const ViewHostMsg_ShowPopup_Params& params) {
   view_->ShowPopupWithItems(params.bounds,
                             params.item_height,
                             params.item_font_size,
                             params.selected_item,
-                            params.popup_items);
+                            params.popup_items,
+                            params.right_aligned);
 }
 
 void RenderWidgetHost::OnMsgGetScreenInfo(gfx::NativeViewId view,
                                           WebScreenInfo* results) {
   gfx::NativeView native_view = view_ ? view_->GetNativeView() : NULL;
   *results = WebScreenInfoFactory::screenInfo(native_view);
 }
 
 void RenderWidgetHost::OnMsgGetWindowRect(gfx::NativeViewId window_id,
                                           gfx::Rect* results) {
@@ skipping 166 matching lines @@
     // of this key event.
     if (!processed && !is_hidden_ && !front_item.skip_in_browser) {
       UnhandledKeyboardEvent(front_item);
 
       // WARNING: This RenderWidgetHost can be deallocated at this point
       // (i.e.  in the case of Ctrl+W, where the call to
       // UnhandledKeyboardEvent destroys this RenderWidgetHost).
     }
   }
 }