extensions: Move sockets manifest handler registration

extensions/common/common_manifest_handlers.cc

Index: extensions/common/common_manifest_handlers.cc
diff --git a/extensions/common/common_manifest_handlers.cc b/extensions/common/common_manifest_handlers.cc
index 37330ef9583839674e48b111520e404fafad6908..9fac1bb4261ac58682407d5d89aaf822deb6214c 100644
--- a/extensions/common/common_manifest_handlers.cc
+++ b/extensions/common/common_manifest_handlers.cc
@@ -4,6 +4,7 @@
 
 #include "extensions/common/common_manifest_handlers.h"
 
+#include "extensions/common/api/sockets/sockets_manifest_handler.h"
 #include "extensions/common/manifest_handler.h"
 #include "extensions/common/manifest_handlers/background_info.h"
 #include "extensions/common/manifest_handlers/csp_info.h"
@@ -40,6 +41,7 @@ void RegisterCommonManifestHandlers() {
   (new OfflineEnabledHandler)->Register();
   (new SandboxedPageHandler)->Register();
   (new SharedModuleHandler)->Register();
+  (new SocketsManifestHandler)->Register();
   (new WebAccessibleResourcesHandler)->Register();
   (new WebviewHandler)->Register();
 #endif  // defined(ENABLE_EXTENSIONS)