Move guest_view to extensions.

chrome/browser/guest_view/web_view/web_view_renderer_state.cc

 // Copyright 2014 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/guest_view/web_view/web_view_renderer_state.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
+namespace extensions {
+
 // static
 WebViewRendererState* WebViewRendererState::GetInstance() {
   return Singleton<WebViewRendererState>::get();
 }
 
 WebViewRendererState::WebViewRendererState() {
 }
 
 WebViewRendererState::~WebViewRendererState() {
 }
@@ skipping 52 matching lines @@
                                           std::string* partition_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   WebViewPartitionIDMap::iterator iter =
       webview_partition_id_map_.find(guest_process_id);
   if (iter != webview_partition_id_map_.end()) {
     *partition_id = iter->second.partition_id;
     return true;
   }
   return false;
 }
+
+}  // namespace extensions