[DevTools] Support multiple DevToolsMessageChunkProcessor instances

content/browser/devtools/devtools_session.cc

Index: content/browser/devtools/devtools_session.cc
diff --git a/content/browser/devtools/devtools_session.cc b/content/browser/devtools/devtools_session.cc
index f9dcb58e6b090f99032a52d319f33350e2c4ff6f..93adadf0674877c173b869a0c992f75ceee7dc0b 100644
--- a/content/browser/devtools/devtools_session.cc
+++ b/content/browser/devtools/devtools_session.cc
@@ -50,7 +50,7 @@ void DevToolsSession::sendResponse(
     std::unique_ptr<base::DictionaryValue> response) {
   std::string json;
   base::JSONWriter::Write(*response.get(), &json);
-  agent_host_->SendMessageToClient(session_id_, json);
+  SendMessageToClient(json);
 }
 
 protocol::Response::Status DevToolsSession::Dispatch(
@@ -81,15 +81,19 @@ protocol::Response::Status DevToolsSession::Dispatch(
                                call_id, method);
 }
 
+void DevToolsSession::SendMessageToClient(const std::string& message) {
+  client_->DispatchProtocolMessage(agent_host_, message);
+}
+
 void DevToolsSession::sendProtocolResponse(
     int call_id,
     std::unique_ptr<protocol::Serializable> message) {
-  agent_host_->SendMessageToClient(session_id_, message->serialize());
+  SendMessageToClient(message->serialize());
 }
 
 void DevToolsSession::sendProtocolNotification(
     std::unique_ptr<protocol::Serializable> message) {
-  agent_host_->SendMessageToClient(session_id_, message->serialize());
+  SendMessageToClient(message->serialize());
 }
 
 void DevToolsSession::flushProtocolNotifications() {