Introduce WebRequestEventRouterDelegate.

chrome/browser/extensions/api/chrome_extensions_api_client.cc

Index: chrome/browser/extensions/api/chrome_extensions_api_client.cc
diff --git a/chrome/browser/extensions/api/chrome_extensions_api_client.cc b/chrome/browser/extensions/api/chrome_extensions_api_client.cc
index 4132234fdc669cf0fc2796dc779170a708966bc5..4de0c5b1affb0d611419b2e429b0a217d0002fa4 100644
--- a/chrome/browser/extensions/api/chrome_extensions_api_client.cc
+++ b/chrome/browser/extensions/api/chrome_extensions_api_client.cc
@@ -7,6 +7,7 @@
 #include "base/files/file_path.h"
 #include "chrome/browser/extensions/api/declarative/rules_registry_service.h"
 #include "chrome/browser/extensions/api/storage/sync_value_store_cache.h"
+#include "chrome/browser/extensions/api/web_request/chrome_extension_web_request_event_router_delegate.h"
 #include "chrome/browser/guest_view/app_view/chrome_app_view_guest_delegate.h"
 #include "chrome/browser/guest_view/extension_options/chrome_extension_options_guest_delegate.h"
 #include "chrome/browser/guest_view/mime_handler_view/chrome_mime_handler_view_guest_delegate.h"
@@ -81,4 +82,9 @@ scoped_refptr<RulesRegistry> ChromeExtensionsAPIClient::GetRulesRegistry(
       GetRulesRegistry(webview_key, event_name);
 }
 
+WebRequestEventRouterDelegate*
+ChromeExtensionsAPIClient::CreateWebRequestEventRouterDelegate() const {
+  return new ChromeExtensionWebRequestEventRouterDelegate();
+}
+
 }  // namespace extensions