[inspector] convert V8Console static methods into members

src/inspector/v8-inspector-impl.cc

Index: src/inspector/v8-inspector-impl.cc
diff --git a/src/inspector/v8-inspector-impl.cc b/src/inspector/v8-inspector-impl.cc
index 567dff2612757de7c752da3361f77af536046f02..705fd793deecb33e24b19ed5c6f7b7481579d410 100644
--- a/src/inspector/v8-inspector-impl.cc
+++ b/src/inspector/v8-inspector-impl.cc
@@ -34,6 +34,7 @@
 #include "src/inspector/string-util.h"
 #include "src/inspector/v8-console-agent-impl.h"
 #include "src/inspector/v8-console-message.h"
+#include "src/inspector/v8-console.h"
 #include "src/inspector/v8-debugger-agent-impl.h"
 #include "src/inspector/v8-debugger.h"
 #include "src/inspector/v8-inspector-session-impl.h"
@@ -335,4 +336,9 @@ V8InspectorSessionImpl* V8InspectorImpl::sessionForContextGroup(
   return iter == m_sessions.end() ? nullptr : iter->second;
 }
 
+V8Console* V8InspectorImpl::console() {
+  if (!m_console) m_console.reset(new V8Console(this));
+  return m_console.get();
+}
+
 }  // namespace v8_inspector