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

chrome/browser/android/devtools_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/android/devtools_server.h"
 
 #include <pwd.h>
 #include <cstring>
 #include <utility>
 
@@ skipping 26 matching lines @@
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/common/user_agent.h"
 #include "jni/DevToolsServer_jni.h"
 #include "net/base/net_errors.h"
 #include "net/socket/unix_domain_server_socket_posix.h"
 #include "net/url_request/url_request_context_getter.h"
+#include "v8/include/v8.h"
 
 using base::android::JavaParamRef;
 using content::DevToolsAgentHost;
 using content::RenderViewHost;
 using content::WebContents;
 
 namespace {
 
 // TL;DR: Do not change this string.
 //
@@ skipping 96 matching lines @@
   net::UnixDomainServerSocket::AuthCallback auth_callback =
       allow_debug_permission ?
           base::Bind(&AuthorizeSocketAccessWithDebugPermission) :
           base::Bind(&content::CanUserConnectToDevTools);
   std::unique_ptr<content::DevToolsSocketFactory> factory(
       new UnixDomainServerSocketFactory(socket_name_, auth_callback));
   DevToolsAgentHost::StartRemoteDebuggingServer(
       std::move(factory),
       base::StringPrintf(kFrontEndURL, content::GetWebKitRevision().c_str()),
       base::FilePath(), base::FilePath(),
-      version_info::GetProductNameAndVersionForUserAgent(), ::GetUserAgent());
+      version_info::GetProductNameAndVersionForUserAgent(), ::GetUserAgent().
+      v8::V8::GetVersion());
   is_started_ = true;
 }
 
 void DevToolsServer::Stop() {
   is_started_ = false;
   DevToolsAgentHost::StopRemoteDebuggingServer();
 }
 
 bool DevToolsServer::IsStarted() const {
   return is_started_;
@@ skipping 29 matching lines @@
                                       jlong server,
                                       jboolean enabled,
                                       jboolean allow_debug_permission) {
   DevToolsServer* devtools_server = reinterpret_cast<DevToolsServer*>(server);
   if (enabled) {
     devtools_server->Start(allow_debug_permission);
   } else {
     devtools_server->Stop();
   }
 }