[DevTools]: Expose V8 version in /json/version

chromecast/browser/devtools/remote_debugging_server.cc

Index: chromecast/browser/devtools/remote_debugging_server.cc
diff --git a/chromecast/browser/devtools/remote_debugging_server.cc b/chromecast/browser/devtools/remote_debugging_server.cc
index bf2681dce06107a7f978b33cc3b84fdd13208172..280aff83ab091a88b4d551a2a18dd0c56dc3c997 100644
--- a/chromecast/browser/devtools/remote_debugging_server.cc
+++ b/chromecast/browser/devtools/remote_debugging_server.cc
@@ -25,6 +25,7 @@
 #include "net/base/net_errors.h"
 #include "net/log/net_log_source.h"
 #include "net/socket/tcp_server_socket.h"
+#include "v8/include/v8.h"
 
 #if defined(OS_ANDROID)
 #include "content/public/browser/android/devtools_auth.h"
@@ -163,7 +164,8 @@ void RemoteDebuggingServer::OnEnabledChanged() {
         base::FilePath(),
         base::FilePath(),
         std::string(),
-        GetUserAgent());
+        GetUserAgent(),
+        v8::V8::GetVersion());
     LOG(INFO) << "Devtools started: port=" << port_;
   } else if (!enabled && is_started_) {
     LOG(INFO) << "Stop devtools: port=" << port_;