Support for interactive set-chrome-as-default in Windows.

chrome/browser/shell_integration_android.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 "base/logging.h"
 #include "chrome/browser/shell_integration.h"
 
 // TODO: crbug/115375 to track implementation for following methods.
 // static
-bool ShellIntegration::CanSetAsDefaultBrowser() {
+ShellIntegration::DefaultWebClientSetPermission
+    ShellIntegration::CanSetAsDefaultBrowser() {
   NOTIMPLEMENTED();
-  return false;
+  return SET_DEFAULT_NOT_ALLOWED;
 }
 
 // static
 bool ShellIntegration::SetAsDefaultBrowser() {
   NOTIMPLEMENTED();
   return false;
 }
 
 // static
 bool ShellIntegration::SetAsDefaultProtocolClient(const std::string& protocol) {
@@ skipping 12 matching lines @@
 ShellIntegration::IsDefaultProtocolClient(const std::string& protocol) {
   NOTIMPLEMENTED();
   return UNKNOWN_DEFAULT_WEB_CLIENT;
 }
 
 // static
 bool ShellIntegration::IsFirefoxDefaultBrowser() {
   return false;
 }