[inspector] added reconnect method for tests

src/inspector/v8-runtime-agent-impl.cc

Index: src/inspector/v8-runtime-agent-impl.cc
diff --git a/src/inspector/v8-runtime-agent-impl.cc b/src/inspector/v8-runtime-agent-impl.cc
index 17c8a7b1accbd2507f5fb34ea15a76ba284c9e98..1118f350f30894b07b3c84ed80ae93f169d4fe48 100644
--- a/src/inspector/v8-runtime-agent-impl.cc
+++ b/src/inspector/v8-runtime-agent-impl.cc
@@ -521,6 +521,7 @@ Response V8RuntimeAgentImpl::runIfWaitingForDebugger() {
 Response V8RuntimeAgentImpl::setCustomObjectFormatterEnabled(bool enabled) {
   m_state->setBoolean(V8RuntimeAgentImplState::customObjectFormatterEnabled,
                       enabled);
+  if (!m_enabled) return Response::Error("Runtime agent is not enabled");
   m_session->setCustomObjectFormatterEnabled(enabled);
   return Response::OK();
 }
@@ -664,6 +665,7 @@ Response V8RuntimeAgentImpl::enable() {
   m_state->setBoolean(V8RuntimeAgentImplState::runtimeEnabled, true);
   m_inspector->enableStackCapturingIfNeeded();
   m_session->reportAllContexts(this);
+
   V8ConsoleMessageStorage* storage =
       m_inspector->ensureConsoleMessageStorage(m_session->contextGroupId());
   for (const auto& message : storage->messages()) {
@@ -678,6 +680,7 @@ Response V8RuntimeAgentImpl::disable() {
   m_state->setBoolean(V8RuntimeAgentImplState::runtimeEnabled, false);
   m_inspector->disableStackCapturingIfNeeded();
   m_session->discardInjectedScripts();
+  m_session->setCustomObjectFormatterEnabled(false);

[dgozman, 2017/02/28 19:46:40]

Nice one!

   reset();
   m_inspector->client()->endEnsureAllContextsInGroup(
       m_session->contextGroupId());