Rename platform-independent ConstrainedWindow types to WebContentsModalDialog types (part 1)

chrome/browser/ui/web_contents_modal_dialog.cc

+// Copyright (c) 2011 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/web_contents_modal_dialog.h"
+
+#include "base/logging.h"
+
+void WebContentsModalDialog::FocusWebContentsModalDialog() {
+}
+
+void WebContentsModalDialog::PulseWebContentsModalDialog() {
+}
+
+bool WebContentsModalDialog::CanShowWebContentsModalDialog() {
+  return true;
+}
+
+gfx::NativeWindow WebContentsModalDialog::GetNativeWindow() {
+  NOTREACHED();
+  return NULL;
+}