Rename platform-independent ConstrainedWindow types to WebContentsModalDialog types (part 2)

chrome/browser/ui/constrained_window_tab_helper_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/constrained_window_tab_helper_delegate.h"
-
-#include <string.h>
-
-bool ConstrainedWindowTabHelperDelegate::ShouldFocusConstrainedWindow() {
-  return true;
-}
-
-void ConstrainedWindowTabHelperDelegate::SetWebContentsBlocked(
-    content::WebContents* web_contents, bool blocked) {
-}
-
-ConstrainedWindowTabHelperDelegate::~ConstrainedWindowTabHelperDelegate() {}
-
-bool ConstrainedWindowTabHelperDelegate::GetDialogTopCenter(gfx::Point* point) {
-  return false;
-}