Remove base/win/metro.{cc|h} and some associated code

chrome/browser/plugins/plugin_observer.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/plugins/plugin_observer.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/debug/crash_logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 21 matching lines @@
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/common/webplugininfo.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/vector_icons_public.h"
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
-#if defined(OS_WIN)
-#include "base/win/metro.h"
-#endif
 #include "chrome/browser/plugins/plugin_installer.h"
 #include "chrome/browser/plugins/plugin_installer_observer.h"
 #include "chrome/browser/ui/tab_modal_confirm_dialog_delegate.h"
 #endif  // defined(ENABLE_PLUGIN_INSTALLATION)
 
 using content::OpenURLParams;
 using content::PluginService;
 using content::Referrer;
 using content::WebContents;
 
@@ skipping 376 matching lines @@
 #else
       gfx::VectorIconId::VECTOR_ICON_NONE,
 #endif
       l10n_util::GetStringFUTF16(IDS_PLUGIN_INITIALIZATION_ERROR_PROMPT,
                                  plugin_name),
       true);
 }
 
 void PluginObserver::OnNPAPINotSupported(const std::string& identifier) {
 #if defined(OS_WIN) && defined(ENABLE_PLUGIN_INSTALLATION)
-#if !defined(USE_AURA)
-  DCHECK(base::win::IsMetroProcess());
-#endif
-
   scoped_ptr<PluginMetadata> plugin;
   bool ret = PluginFinder::GetInstance()->FindPluginWithIdentifier(
       identifier, NULL, &plugin);
   DCHECK(ret);
 
   PluginMetroModeInfoBarDelegate::Create(
       InfoBarService::FromWebContents(web_contents()),
       PluginMetroModeInfoBarDelegate::DESKTOP_MODE_REQUIRED, plugin->name());
 #endif
 }