Move a bunch of code in content\renderer to the content namespace.

content/renderer/render_widget_fullscreen.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/renderer/render_widget_fullscreen.h"
 
 #include "content/common/view_messages.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebWidget.h"
 
 using WebKit::WebWidget;
 
+namespace content {
+
 // static
 RenderWidgetFullscreen* RenderWidgetFullscreen::Create(int32 opener_id) {
   DCHECK_NE(MSG_ROUTING_NONE, opener_id);
   scoped_refptr<RenderWidgetFullscreen> widget(
       new RenderWidgetFullscreen(WebKit::WebScreenInfo()));
   widget->Init(opener_id);
   return widget.release();
 }
 
 void RenderWidgetFullscreen::show(WebKit::WebNavigationPolicy) {
@@ skipping 22 matching lines @@
 
 void RenderWidgetFullscreen::Init(int32 opener_id) {
   DCHECK(!webwidget_);
 
   RenderWidget::DoInit(
       opener_id,
       CreateWebWidget(),
       new ViewHostMsg_CreateFullscreenWidget(
           opener_id, &routing_id_, &surface_id_));
 }
+
+}  // namespace content