Revert of [DevTools] Postpone more agents instantiation until attached.

third_party/WebKit/Source/core/inspector/InspectorConsoleAgent.h

Index: third_party/WebKit/Source/core/inspector/InspectorConsoleAgent.h
diff --git a/third_party/WebKit/Source/core/inspector/InspectorConsoleAgent.h b/third_party/WebKit/Source/core/inspector/InspectorConsoleAgent.h
index 8277b4ddcc775fbe2716a6c6937b149c587b284e..afcb7e7f6d129538ce695c88d6f9f74051d5b1b2 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorConsoleAgent.h
+++ b/third_party/WebKit/Source/core/inspector/InspectorConsoleAgent.h
@@ -42,9 +42,11 @@ typedef String ErrorString;
 class CORE_EXPORT InspectorConsoleAgent : public InspectorBaseAgent<InspectorConsoleAgent, protocol::Frontend::Console>, public protocol::Dispatcher::ConsoleCommandHandler {
     WTF_MAKE_NONCOPYABLE(InspectorConsoleAgent);
 public:
-    InspectorConsoleAgent(V8RuntimeAgent*, V8DebuggerAgent*);
+    explicit InspectorConsoleAgent(V8RuntimeAgent*);
     ~InspectorConsoleAgent() override;
 
+    void setDebuggerAgent(V8DebuggerAgent* debuggerAgent) { m_debuggerAgent = debuggerAgent; }
+
     void enable(ErrorString*) override;
     bool enabled() { return m_enabled; }