Remove remote tree host and some related input and metro_driver code

chrome/browser/browser_process_platform_part_aurawin.cc

 // Copyright (c) 2013 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_platform_part_aurawin.h"
 
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "base/prefs/pref_service.h"
-#include "base/process/kill.h"
-#include "base/win/windows_version.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/first_run/upgrade_util.h"
-#include "chrome/browser/first_run/upgrade_util_win.h"
-#include "chrome/browser/lifetime/application_lifetime.h"
-#include "chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/pref_names.h"
-#include "content/public/browser/notification_service.h"
-
-#include "ui/aura/remote_window_tree_host_win.h"
-#include "ui/base/ui_base_switches.h"
-
 BrowserProcessPlatformPart::BrowserProcessPlatformPart() {
-  if (base::win::GetVersion() >= base::win::VERSION_WIN7) {
-    // Tell metro viewer to close when we are shutting down.
-    registrar_.Add(this, chrome::NOTIFICATION_APP_TERMINATING,
-                   content::NotificationService::AllSources());
-  }
 }
 
 BrowserProcessPlatformPart::~BrowserProcessPlatformPart() {
 }
 
-void BrowserProcessPlatformPart::OnMetroViewerProcessTerminated() {
-  metro_viewer_process_host_.reset(NULL);
-}
-
 void BrowserProcessPlatformPart::PlatformSpecificCommandLineProcessing(

[sky, 2016/01/14 15:50:09]

Seems like this class no longer has any content. Can it be nuked?

[scottmg, 2016/01/14 18:20:47]

Ah, I thought it needed a stub, but there's a common empty one used on Linux
too. Done.

     const base::CommandLine& command_line) {
-  // Check for Windows 8 specific commandlines requesting that this process
-  // either connect to an existing viewer or launch a new viewer and
-  // synchronously wait for it to connect.
-
-  bool launch = command_line.HasSwitch(switches::kViewerLaunchViaAppId);
-  bool connect = (launch ||
-                  (command_line.HasSwitch(switches::kViewerConnect) &&
-                   !metro_viewer_process_host_.get()));
-  if (!connect)
-    return;
-  // Create a host to connect to the Metro viewer process over IPC.
-  metro_viewer_process_host_.reset(new ChromeMetroViewerProcessHost());
-  if (launch) {
-    CHECK(metro_viewer_process_host_->LaunchViewerAndWaitForConnection(
-        command_line.GetSwitchValueNative(
-            switches::kViewerLaunchViaAppId)));
-  }
 }
 
 void BrowserProcessPlatformPart::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
-
-  DCHECK(type == chrome::NOTIFICATION_APP_TERMINATING);
-  PrefService* pref_service = g_browser_process->local_state();
-  bool is_relaunch = pref_service->GetBoolean(prefs::kWasRestarted);
-  if (is_relaunch) {
-    // TODO(scottmg): A lot of this can be removed http://crbug.com/558054.
-  }
 }