Ensure that Metro chrome in ASH is able to connect to an existing desktop chrome AURA process.

chrome/browser/chrome_browser_main_win.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/chrome_browser_main_win.h"
 
 #include <windows.h>
 #include <shellapi.h>
 
 #include <algorithm>
@@ skipping 32 matching lines @@
 #include "grit/app_locale_settings.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "installer_util_strings/installer_util_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/l10n/l10n_util_win.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/base/win/message_box_win.h"
 #include "ui/gfx/platform_font_win.h"
 
-#if defined(USE_AURA)
-#include "chrome/browser/metro_viewer/metro_viewer_process_host_win.h"
-#endif
-
-
 namespace {
 
 typedef HRESULT (STDAPICALLTYPE* RegisterApplicationRestartProc)(
     const wchar_t* command_line,
     DWORD flags);
 
 void InitializeWindowProcExceptions() {
   // Get the breakpad pointer from chrome.exe
   base::win::WinProcExceptionFilter exception_filter =
       reinterpret_cast<base::win::WinProcExceptionFilter>(
@@ skipping 152 matching lines @@
       MessageLoopForUI::current()->SetMessageFilter(
         tsf_message_filter.PassAs<MessageLoopForUI::MessageFilter>());
     }
   }
 }
 
 void ChromeBrowserMainPartsWin::PreMainMessageLoopRun() {
   ChromeBrowserMainParts::PreMainMessageLoopRun();
 
   removable_device_notifications_window_->Init();
-
-#if defined(USE_AURA)
-  CommandLine& command_line = *CommandLine::ForCurrentProcess();
-  if (command_line.HasSwitch(switches::kViewerConnection) &&
-      !metro_viewer_process_host_) {
-    // Tell the metro viewer process host to connect to the given IPC channel.
-    metro_viewer_process_host_.reset(
-        new MetroViewerProcessHost(
-            command_line.GetSwitchValueASCII(switches::kViewerConnection)));
-  }
-#endif
 }
 
 // static
 void ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
     const CommandLine& parsed_command_line) {
   // Clear this var so child processes don't show the dialog by default.
   scoped_ptr<base::Environment> env(base::Environment::Create());
   env->UnSetVar(env_vars::kShowRestart);
 
   // For non-interactive tests we don't restart on crash.
@@ skipping 151 matching lines @@
   if (resource_id)
     return l10n_util::GetStringUTF16(resource_id);
   return string16();
 }
 
 // static
 void ChromeBrowserMainPartsWin::SetupInstallerUtilStrings() {
   CR_DEFINE_STATIC_LOCAL(TranslationDelegate, delegate, ());
   installer::SetTranslationDelegate(&delegate);
 }