Make it so the windows store protocol is properly handled

chrome/browser/external_protocol/external_protocol_handler.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/external_protocol/external_protocol_handler.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 154 matching lines @@
     // iframe or a redirect, it looks like an external protocol, but we don't
     // want to shellexecute it.
     "view-source",
     "vnd.ms.radio",
   };
 
   static const char* const allowed_schemes[] = {
     "mailto",
     "news",
     "snews",
+#if defined(OS_WIN)
+    "ms-windows-store",
+#endif
   };
 
   bool should_block;
   for (size_t i = 0; i < arraysize(denied_schemes); ++i) {
     if (!win_pref->GetBoolean(denied_schemes[i], &should_block)) {
       win_pref->SetBoolean(denied_schemes[i], true);
     }
   }
 
   for (size_t i = 0; i < arraysize(allowed_schemes); ++i) {
@@ skipping 110 matching lines @@
 // static
 void ExternalProtocolHandler::RegisterPrefs(PrefService* prefs) {
   prefs->RegisterDictionaryPref(prefs::kExcludedSchemes);
 }
 
 // static
 void ExternalProtocolHandler::PermitLaunchUrl() {
   DCHECK_EQ(MessageLoop::TYPE_UI, MessageLoop::current()->type());
   g_accept_requests = true;
 }