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

content/browser/devtools/devtools_http_handler.cc

Index: content/browser/devtools/devtools_http_handler.cc
diff --git a/content/browser/devtools/devtools_http_handler.cc b/content/browser/devtools/devtools_http_handler.cc
index 98841ec8cec7ab59e58aec0d2f723fe106b7bea6..bd980ec31a67daf646e1d0b7e976ebf5ac319b1d 100644
--- a/content/browser/devtools/devtools_http_handler.cc
+++ b/content/browser/devtools/devtools_http_handler.cc
@@ -37,6 +37,7 @@
 #include "net/server/http_server_request_info.h"
 #include "net/server/http_server_response_info.h"
 #include "net/socket/server_socket.h"
+#include "v8/include/v8.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/build_info.h"
@@ -524,6 +525,7 @@ void DevToolsHttpHandler::OnJsonRequest(
     version.SetString("WebKit-Version", GetWebKitVersion());
     version.SetString("Browser", product_name_);
     version.SetString("User-Agent", user_agent_);
+    version.SetString("V8-Version", v8::V8::GetVersion());
 #if defined(OS_ANDROID)
     version.SetString("Android-Package",
         base::android::BuildInfo::GetInstance()->package_name());