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

chrome/browser/extensions/chrome_requirements_checker.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/extensions/chrome_requirements_checker.h"
 
 #include "base/bind.h"
 #include "build/build_config.h"
 #include "chrome/browser/gpu/gpu_feature_checker.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest.h"
 #include "extensions/common/manifest_handlers/requirements_info.h"
 #include "gpu/config/gpu_feature_type.h"
 #include "ui/base/l10n/l10n_util.h"
 
-#if defined(OS_WIN)
-#include "base/win/metro.h"
-#endif
-
 namespace extensions {
 
 ChromeRequirementsChecker::ChromeRequirementsChecker()
     : pending_requirement_checks_(0), weak_ptr_factory_(this) {
 }
 
 ChromeRequirementsChecker::~ChromeRequirementsChecker() {
 }
 
 void ChromeRequirementsChecker::Check(
     const scoped_refptr<const Extension>& extension,
     const RequirementsCheckedCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
   callback_ = callback;
   const RequirementsInfo& requirements =
       RequirementsInfo::GetRequirements(extension.get());
 
   if (requirements.npapi) {
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
     errors_.push_back(
         l10n_util::GetStringUTF8(IDS_EXTENSION_NPAPI_NOT_SUPPORTED));
 #endif
-#if defined(OS_WIN)
-    if (base::win::IsMetroProcess()) {
-      errors_.push_back(
-          l10n_util::GetStringUTF8(IDS_EXTENSION_NPAPI_NOT_SUPPORTED));
-    }
-#endif
   }
 
   if (requirements.window_shape) {
 #if !defined(USE_AURA)
     errors_.push_back(
         l10n_util::GetStringUTF8(IDS_EXTENSION_WINDOW_SHAPE_NOT_SUPPORTED));
 #endif
   }
 
   if (requirements.webgl) {
@@ skipping 29 matching lines @@
   if (--pending_requirement_checks_ == 0) {
     content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
                                      base::Bind(callback_, errors_));
     // Reset the callback so any ref-counted bound parameters will get released.
     callback_.Reset();
     errors_.clear();
   }
 }
 
 }  // namespace extensions