[PhysicalWeb] Add physical_web namespace.

chrome/browser/browser_process_impl.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 "chrome/browser/browser_process_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 769 matching lines @@
 #else
   return nullptr;
 #endif
 }
 
 shell_integration::DefaultWebClientState
 BrowserProcessImpl::CachedDefaultWebClientState() {
   return cached_default_web_client_state_;
 }
 
-PhysicalWebDataSource* BrowserProcessImpl::GetPhysicalWebDataSource() {
+physical_web::PhysicalWebDataSource*
+BrowserProcessImpl::GetPhysicalWebDataSource() {
   DCHECK(CalledOnValidThread());
 #if defined(OS_ANDROID)
   if (!physical_web_data_source_) {
     CreatePhysicalWebDataSource();
     DCHECK(physical_web_data_source_);
   }
   return physical_web_data_source_.get();
 #else
   return nullptr;
 #endif
@@ skipping 601 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)