[DevTools] Support multiple DevToolsMessageChunkProcessor instances

content/browser/devtools/devtools_session.h

Index: content/browser/devtools/devtools_session.h
diff --git a/content/browser/devtools/devtools_session.h b/content/browser/devtools/devtools_session.h
index 24909914ef6d85da6de94b6494cfd3af3dc23198..42b45c7e495b9c9b5ba5b8784fcefff2d4b78a3f 100644
--- a/content/browser/devtools/devtools_session.h
+++ b/content/browser/devtools/devtools_session.h
@@ -28,6 +28,7 @@ class DevToolsSession : public protocol::FrontendChannel {
   void AddHandler(std::unique_ptr<protocol::DevToolsDomainHandler> handler);
   void SetRenderFrameHost(RenderFrameHostImpl* host);
   void SetFallThroughForNotFound(bool value);
+  bool ProcessChunkedMessageFromAgent(const DevToolsMessageChunk& chunk);
 
   protocol::Response::Status Dispatch(
       const std::string& message,
@@ -36,6 +37,7 @@ class DevToolsSession : public protocol::FrontendChannel {
 
   // Only used by DevToolsAgentHostImpl.
   DevToolsAgentHostClient* client() const { return client_; }
+  void SendMessageToClient(const std::string& message);
 
   template <typename Handler>
   static std::vector<Handler*> HandlersForAgentHost(