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

chrome/browser/devtools/remote_debugging_server.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/devtools/remote_debugging_server.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_paths.h"
 #include "components/version_info/version_info.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/devtools_frontend_host.h"
 #include "content/public/browser/devtools_socket_factory.h"
 #include "net/base/net_errors.h"
 #include "net/log/net_log_source.h"
 #include "net/socket/tcp_server_socket.h"
 #include "third_party/WebKit/public/public_features.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "v8/include/v8.h"
 
 namespace {
 
 base::LazyInstance<bool>::Leaky g_tethering_enabled = LAZY_INSTANCE_INITIALIZER;
 
 const uint16_t kMinTetheringPort = 9333;
 const uint16_t kMaxTetheringPort = 9444;
 const int kBackLog = 10;
 
 class TCPServerSocketFactory
@@ skipping 68 matching lines @@
 #if BUILDFLAG(DEBUG_DEVTOOLS)
   PathService::Get(chrome::DIR_INSPECTOR_DEBUG, &debug_frontend_dir);
 #endif
 
   content::DevToolsAgentHost::StartRemoteDebuggingServer(
       base::MakeUnique<TCPServerSocketFactory>(ip, port),
       std::string(),
       output_dir,
       debug_frontend_dir,
       version_info::GetProductNameAndVersionForUserAgent(),
-      ::GetUserAgent());
+      ::GetUserAgent(),
+      v8::V8::GetVersion());
 }
 
 RemoteDebuggingServer::~RemoteDebuggingServer() {
   // Ensure Profile is alive, because the whole DevTools subsystem
   // accesses it during shutdown.
   DCHECK(g_browser_process->profile_manager());
   content::DevToolsAgentHost::StopRemoteDebuggingServer();
 }