Support WebView in ash.

content/shell/shell_aura.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 "content/shell/shell.h"
+
+namespace content {
+
+// static
+void Shell::PlatformInitialize() {
+}
+
+base::StringPiece Shell::PlatformResourceProvider(int key) {
+  return base::StringPiece();
+}
+
+void Shell::PlatformExit() {
+}
+
+void Shell::PlatformCleanUp() {
+}
+
+void Shell::PlatformEnableUIControl(UIControl control, bool is_enabled) {
+}
+
+void Shell::PlatformSetAddressBarURL(const GURL& url) {
+}
+
+void Shell::PlatformSetIsLoading(bool loading) {
+}
+
+void Shell::PlatformCreateWindow(int width, int height) {
+}
+
+void Shell::PlatformSetContents() {
+}
+
+void Shell::PlatformResizeSubViews() {
+}
+
+void Shell::Close() {
+}
+
+}  // namespace content