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

content/shell/browser/shell_devtools_manager_delegate.cc

Index: content/shell/browser/shell_devtools_manager_delegate.cc
diff --git a/content/shell/browser/shell_devtools_manager_delegate.cc b/content/shell/browser/shell_devtools_manager_delegate.cc
index 32b65bace89e5843f7730f939bfcf51c0fb8a7dc..26d3c8fa889cddd283aa5ddfba408e9262cb18ea 100644
--- a/content/shell/browser/shell_devtools_manager_delegate.cc
+++ b/content/shell/browser/shell_devtools_manager_delegate.cc
@@ -36,6 +36,7 @@
 #include "net/log/net_log_source.h"
 #include "net/socket/tcp_server_socket.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "v8/include/v8.h"
 
 #if defined(OS_ANDROID)
 #include "content/public/browser/android/devtools_auth.h"
@@ -168,7 +169,8 @@ void ShellDevToolsManagerDelegate::StartHttpHandler(
       browser_context->GetPath(),
       base::FilePath(),
       std::string(),
-      GetShellUserAgent());
+      GetShellUserAgent(),
+      v8::V8::GetVersion());
 }
 
 // static