Move shell integration code from chrome/browser to apps

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
-ShellIntegration::DefaultWebClientSetPermission
-    ShellIntegration::CanSetAsDefaultBrowser() {
-  NOTIMPLEMENTED();
-  return SET_DEFAULT_NOT_ALLOWED;
-}
-
-// static
-bool ShellIntegration::SetAsDefaultBrowser() {
-  NOTIMPLEMENTED();
-  return false;
-}
-
-// static
-bool ShellIntegration::SetAsDefaultProtocolClient(const std::string& protocol) {
-  NOTIMPLEMENTED();
-  return false;
-}
-
-// static
-ShellIntegration::DefaultWebClientState ShellIntegration::GetDefaultBrowser() {
-  NOTIMPLEMENTED();
-  return UNKNOWN_DEFAULT;
-}
-
-// static
-ShellIntegration::DefaultWebClientState
-ShellIntegration::IsDefaultProtocolClient(const std::string& protocol) {
-  NOTIMPLEMENTED();
-  return UNKNOWN_DEFAULT;
-}
-
-// static
-bool ShellIntegration::IsFirefoxDefaultBrowser() {
-  return false;
-}
-