Persist Debugger and Runtime domain state for Hermes CDPAgent (#43443)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/43443

TSIA

Changelog: [Internal]

Reviewed By: huntie

Differential Revision: D54712525

fbshipit-source-id: 34b1804088f15a2524607ebce81bceb82170feab

packages/react-native/ReactCommon/hermes/inspector-modern/chrome/HermesRuntimeAgentDelegateNew.cpp

@@ -74,6 +74,12 @@ class HermesRuntimeAgentDelegateNew::Impl final : public RuntimeAgentDelegate {
     if (sessionState.isLogDomainEnabled) {
       sendHermesIntegrationDescription();
     }
+    if (sessionState.isRuntimeDomainEnabled) {
+      hermes_->enableRuntimeDomain();
+    }
+    if (sessionState.isDebuggerDomainEnabled) {
+      hermes_->enableDebuggerDomain();
+    }
   }
 
   bool handleRequest(const cdp::PreparsedRequest& req) override {

packages/react-native/ReactCommon/jsinspector-modern/HostAgent.cpp

@@ -74,6 +74,16 @@ void HostAgent::handleRequest(const cdp::PreparsedRequest& req) {
   } else if (req.method == "Runtime.disable") {
     sessionState_.isRuntimeDomainEnabled = false;
 
+    shouldSendOKResponse = true;
+    isFinishedHandlingRequest = false;
+  } else if (req.method == "Debugger.enable") {
+    sessionState_.isDebuggerDomainEnabled = true;
+
+    shouldSendOKResponse = true;
+    isFinishedHandlingRequest = false;
+  } else if (req.method == "Debugger.disable") {
+    sessionState_.isDebuggerDomainEnabled = false;
+
     shouldSendOKResponse = true;
     isFinishedHandlingRequest = false;
   }

packages/react-native/ReactCommon/jsinspector-modern/SessionState.h

@@ -20,6 +20,7 @@ namespace facebook::react::jsinspector_modern {
 struct SessionState {
  public:
   // TODO: Generalise this to arbitrary domains
+  bool isDebuggerDomainEnabled{false};
   bool isLogDomainEnabled{false};
   bool isRuntimeDomainEnabled{false};