Revert of [DevTools] Make DevTools clients talk directly to DevToolsAgentHost instead of using DevToolsManage…

content/browser/devtools/forwarding_agent_host.cc

Index: content/browser/devtools/forwarding_agent_host.cc
diff --git a/content/browser/devtools/forwarding_agent_host.cc b/content/browser/devtools/forwarding_agent_host.cc
index 5267ae1974f0b8675790fc222a6d74be44ad5466..f1524e1b7e1d9798c1b0dbf4f40899d768c04c4a 100644
--- a/content/browser/devtools/forwarding_agent_host.cc
+++ b/content/browser/devtools/forwarding_agent_host.cc
@@ -17,11 +17,12 @@
 }
 
 void ForwardingAgentHost::DispatchOnClientHost(const std::string& message) {
-  SendMessageToClient(message);
+  DevToolsManagerImpl::GetInstance()->DispatchOnInspectorFrontend(
+      this, message);
 }
 
 void ForwardingAgentHost::ConnectionClosed() {
-  HostClosed();
+  NotifyCloseListener();
 }
 
 void ForwardingAgentHost::Attach() {
@@ -32,7 +33,7 @@
   delegate_->Detach();
 }
 
-void ForwardingAgentHost::DispatchProtocolMessage(
+void ForwardingAgentHost::DispatchOnInspectorBackend(
     const std::string& message) {
   delegate_->SendMessageToBackend(message);
 }