Move enable extensions define to a build flag.

chrome/browser/net/chrome_extensions_network_delegate.cc

 // Copyright 2014 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/net/chrome_extensions_network_delegate.h"
 
 #include <stdint.h>
 
 #include "base/macros.h"
+#include "extensions/features/features.h"
 #include "net/base/net_errors.h"
 
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
 #include "base/debug/alias.h"
 #include "base/debug/dump_without_crashing.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/proxy/proxy_api.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/renderer_host/chrome_navigation_ui_data.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_security_policy.h"
@@ skipping 283 matching lines @@
     const net::AuthChallengeInfo& auth_info,
     const AuthCallback& callback,
     net::AuthCredentials* credentials) {
   return ExtensionWebRequestEventRouter::GetInstance()->OnAuthRequired(
       profile_, extension_info_map_.get(), request, auth_info, callback,
       credentials);
 }
 
 }  // namespace
 
-#endif  // defined(ENABLE_EXTENSIONS)
+#endif  // BUILDFLAG(ENABLE_EXTENSIONS)
 
 // static
 ChromeExtensionsNetworkDelegate* ChromeExtensionsNetworkDelegate::Create(
     extensions::EventRouterForwarder* event_router) {
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
   return new ChromeExtensionsNetworkDelegateImpl(event_router);
 #else
   return new ChromeExtensionsNetworkDelegate();
 #endif
 }
 
 ChromeExtensionsNetworkDelegate::ChromeExtensionsNetworkDelegate()
     : profile_(NULL) {
 }
 
 ChromeExtensionsNetworkDelegate::~ChromeExtensionsNetworkDelegate() {}
 
 void ChromeExtensionsNetworkDelegate::set_extension_info_map(
     extensions::InfoMap* extension_info_map) {
-#if defined(ENABLE_EXTENSIONS)
+#if BUILDFLAG(ENABLE_EXTENSIONS)
   extension_info_map_ = extension_info_map;
 #endif
 }
 
 void ChromeExtensionsNetworkDelegate::ForwardProxyErrors(
     net::URLRequest* request,
     int net_error) {}
 
 void ChromeExtensionsNetworkDelegate::ForwardStartRequestStatus(
     net::URLRequest* request) {
@@ skipping 53 matching lines @@
 }
 
 net::NetworkDelegate::AuthRequiredResponse
 ChromeExtensionsNetworkDelegate::OnAuthRequired(
     net::URLRequest* request,
     const net::AuthChallengeInfo& auth_info,
     const AuthCallback& callback,
     net::AuthCredentials* credentials) {
   return net::NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION;
 }