Enable dev tools in berkelium

berkelium.enable-devtools.patch

diff --git a/src/Root.cpp b/src/Root.cpp
index 37f9833..13d161e 100644
--- a/src/Root.cpp
+++ b/src/Root.cpp
@@ -469,6 +469,12 @@ bool Root::init(FileString homeDirectory, FileString subprocessDirectory) {
         g_browser_process->resource_dispatcher_host());
 
     mDefaultRequestContext=mProf->GetRequestContext();
+
+    g_browser_process->InitDevToolsHttpProtocolHandler(
+        "127.0.0.1",
+        (int)9222,
+        "");
+
     return true;
 }