Refactor GestureNavigation to eliminate code redundancy

content/browser/web_contents/aura/wcw_wrapper.cc

+// Copyright 2015 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/browser/web_contents/web_contents_impl.h"
+#include "content/public/browser/render_widget_host_view.h"
+#include "ui/aura/window.h"
+
+namespace content {
+
+WCWWrapper::WCWWrapper(WebContentsImpl* web_contents)
+    : SlidableWrapper(),
+      web_contents_(web_contents) {
+  // I don't think we need this class.
+  NOTREACHED();
+  DCHECK(web_contents_);
+}
+
+WCWWrapper::~WCWWrapper() {
+}
+
+ui::Layer* WCWWrapper::GetLayer() {
+  return web_contents_->GetRenderWidgetHostView()->GetNativeView()->layer();
+}
+
+gfx::Rect WCWWrapper::GetBounds() {
+  return web_contents_->GetRenderWidgetHostView()->GetNativeView()->bounds();
+}
+
+void WCWWrapper::SetBounds(const gfx::Rect& bounds) {
+  web_contents_->GetRenderWidgetHostView()->GetNativeView()->SetBounds(bounds);
+}
+
+}  // namespace content