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

content/browser/devtools/devtools_manager.cc

Index: content/browser/devtools/devtools_manager.cc
diff --git a/content/browser/devtools/devtools_manager.cc b/content/browser/devtools/devtools_manager.cc
index efd7bd71af292f85f485cba1ed27ea2244e1af34..aeaedce8160aad01d2428ec107c47b2678cd58ec 100644
--- a/content/browser/devtools/devtools_manager.cc
+++ b/content/browser/devtools/devtools_manager.cc
@@ -23,14 +23,15 @@ void DevToolsAgentHost::StartRemoteDebuggingServer(
       const base::FilePath& active_port_output_directory,
       const base::FilePath& debug_frontend_dir,
       const std::string& product_name,
-      const std::string& user_agent) {
+      const std::string& user_agent,
+      const std::string& v8_version) {
   DevToolsManager* manager = DevToolsManager::GetInstance();
   if (!manager->delegate())
     return;
   manager->SetHttpHandler(base::WrapUnique(new DevToolsHttpHandler(
       manager->delegate(), std::move(server_socket_factory), frontend_url,
       active_port_output_directory, debug_frontend_dir, product_name,
-      user_agent)));
+      user_agent, v8_version)));
 }
 
 // static