Create a about handler component.

chrome/browser/extensions/api/web_request/web_request_api_unittest.cc

Index: chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
diff --git a/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc b/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
index 97c39d018f095651b3aebde8258f2ab8a51fa025..92f4e306e62d3d8a0562d4e708ddbb03604d86f8 100644
--- a/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
+++ b/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
@@ -25,12 +25,12 @@
 #include "base/time/time.h"
 #include "chrome/browser/content_settings/cookie_settings_factory.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
-#include "chrome/browser/net/about_protocol_handler.h"
 #include "chrome/browser/net/chrome_network_delegate.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_pref_service_syncable.h"
 #include "chrome/test/base/testing_profile.h"
 #include "chrome/test/base/testing_profile_manager.h"
+#include "components/about_handler/about_protocol_handler.h"
 #include "components/content_settings/core/browser/cookie_settings.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/test/test_browser_thread_bundle.h"
@@ -239,7 +239,7 @@ TEST_F(ExtensionWebRequestTest, BlockingEventPrecedenceRedirect) {
 
   net::URLRequestJobFactoryImpl job_factory;
   job_factory.SetProtocolHandler(
-      url::kAboutScheme, new chrome_browser_net::AboutProtocolHandler());
+      url::kAboutScheme, new components_about_handler::AboutProtocolHandler());
   context_->set_job_factory(&job_factory);
 
   GURL redirect_url("about:redirected");