Add physical_web namespace

ios/chrome/browser/application_context_impl.h

 // 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.
 
 #ifndef IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_
 #define IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 43 matching lines @@
   metrics::MetricsService* GetMetricsService() override;
   variations::VariationsService* GetVariationsService() override;
   rappor::RapporService* GetRapporService() override;
   net_log::ChromeNetLog* GetNetLog() override;
   network_time::NetworkTimeTracker* GetNetworkTimeTracker() override;
   IOSChromeIOThread* GetIOSChromeIOThread() override;
   gcm::GCMDriver* GetGCMDriver() override;
   component_updater::ComponentUpdateService* GetComponentUpdateService()
       override;
   CRLSetFetcher* GetCRLSetFetcher() override;
-  PhysicalWebDataSource* GetPhysicalWebDataSource() override;
+  physical_web::PhysicalWebDataSource* GetPhysicalWebDataSource() override;
 
  private:
   // Sets the locale used by the application.
   void SetApplicationLocale(const std::string& locale);
 
   // Create the local state.
   void CreateLocalState();
 
   // Create the gcm driver.
   void CreateGCMDriver();
 
   base::ThreadChecker thread_checker_;
   std::unique_ptr<PrefService> local_state_;
   std::unique_ptr<net_log::ChromeNetLog> net_log_;
   std::unique_ptr<network_time::NetworkTimeTracker> network_time_tracker_;
   std::unique_ptr<IOSChromeIOThread> ios_chrome_io_thread_;
   std::unique_ptr<metrics_services_manager::MetricsServicesManager>
       metrics_services_manager_;
   std::unique_ptr<gcm::GCMDriver> gcm_driver_;
   std::unique_ptr<component_updater::ComponentUpdateService> component_updater_;
   scoped_refptr<CRLSetFetcher> crl_set_fetcher_;
   std::unique_ptr<ios::ChromeBrowserStateManager> chrome_browser_state_manager_;
   std::string application_locale_;
-  std::unique_ptr<PhysicalWebDataSource> physical_web_data_source_;
+  std::unique_ptr<physical_web::PhysicalWebDataSource>
+      physical_web_data_source_;
 
   // Sequenced task runner for local state related I/O tasks.
   const scoped_refptr<base::SequencedTaskRunner> local_state_task_runner_;
 
   bool was_last_shutdown_clean_;
   bool created_local_state_;
 
   DISALLOW_COPY_AND_ASSIGN(ApplicationContextImpl);
 };
 
 #endif  // IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_