[sessions] Properly namespace recently-componentized TabRestore code

chrome/browser/sessions/chrome_tab_restore_service_client.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 "chrome/browser/sessions/chrome_tab_restore_service_client.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/common/url_constants.h"
@@ skipping 30 matching lines @@
 #endif  // defined(ENABLE_EXTENSIONS)
 }
 
 }  // namespace
 
 ChromeTabRestoreServiceClient::ChromeTabRestoreServiceClient(Profile* profile)
     : profile_(profile) {}
 
 ChromeTabRestoreServiceClient::~ChromeTabRestoreServiceClient() {}
 
-TabRestoreServiceDelegate*
+sessions::TabRestoreServiceDelegate*
 ChromeTabRestoreServiceClient::CreateTabRestoreServiceDelegate(
     int host_desktop_type,
     const std::string& app_name) {
 #if defined(OS_ANDROID)
   // Android does not support TabRestoreServiceDelegate, as tab persistence
   // is implemented on the Java side.
   return nullptr;
 #else
   return BrowserTabRestoreServiceDelegate::Create(
       profile_, static_cast<chrome::HostDesktopType>(host_desktop_type),
       app_name);
 #endif
 }
 
-TabRestoreServiceDelegate*
+sessions::TabRestoreServiceDelegate*
 ChromeTabRestoreServiceClient::FindTabRestoreServiceDelegateForTab(
     const sessions::LiveTab* tab) {
 #if defined(OS_ANDROID)
   // Android does not support TabRestoreServiceDelegate, as tab persistence
   // is implemented on the Java side.
   return nullptr;
 #else
   return BrowserTabRestoreServiceDelegate::FindDelegateForWebContents(
       static_cast<const sessions::ContentLiveTab*>(tab)->web_contents());
 #endif
 }
 
-TabRestoreServiceDelegate*
+sessions::TabRestoreServiceDelegate*
 ChromeTabRestoreServiceClient::FindTabRestoreServiceDelegateWithID(
     SessionID::id_type desired_id,
     int host_desktop_type) {
 #if defined(OS_ANDROID)
   // Android does not support TabRestoreServiceDelegate, as tab persistence
   // is implemented on the Java side.
   return nullptr;
 #else
   return BrowserTabRestoreServiceDelegate::FindDelegateWithID(
       desired_id, static_cast<chrome::HostDesktopType>(host_desktop_type));
@@ skipping 66 matching lines @@
   DCHECK(HasLastSession());
 #if defined(ENABLE_SESSION_SERVICE)
   SessionServiceFactory::GetForProfile(profile_)
       ->GetLastSession(callback, tracker);
 #endif
 }
 
 void ChromeTabRestoreServiceClient::OnTabRestored(const GURL& url) {
   RecordAppLaunch(profile_, url);
 }