Revert of [DevTools] Migrate DevToolsTracingHandler to generated handler.

content/browser/devtools/protocol/devtools_protocol_client.h

Index: content/browser/devtools/protocol/devtools_protocol_client.h
diff --git a/content/browser/devtools/protocol/devtools_protocol_client.h b/content/browser/devtools/protocol/devtools_protocol_client.h
index 620a7c14995d8265fdc4dc8492914d1241520c7c..b2f95b71d3cebe14e0a66561ccc5eb30f0d98f41 100644
--- a/content/browser/devtools/protocol/devtools_protocol_client.h
+++ b/content/browser/devtools/protocol/devtools_protocol_client.h
@@ -11,8 +11,11 @@
 
 class DevToolsProtocolClient {
  public:
-  typedef base::Callback<void(const std::string& message)>
-      RawMessageCallback;
+  typedef base::Callback<void(const std::string& event,
+                              base::DictionaryValue* params)> EventCallback;
+
+  typedef base::Callback<void(scoped_refptr<DevToolsProtocol::Response>)>
+      ResponseCallback;
 
   enum ResponseStatus {
     RESPONSE_STATUS_FALLTHROUGH,
@@ -50,12 +53,9 @@
       scoped_refptr<DevToolsProtocol::Command> command,
       const std::string& message);
 
-  // Sends message to client, the caller is presumed to properly
-  // format the message. Do not use unless you must.
-  void SendRawMessage(const std::string& message);
-
  protected:
-  DevToolsProtocolClient(const RawMessageCallback& raw_message_callback);
+  DevToolsProtocolClient(const EventCallback& event_callback,
+                         const ResponseCallback& response_callback);
 
   virtual ~DevToolsProtocolClient();
 
@@ -65,7 +65,8 @@
   void SendAsyncResponse(scoped_refptr<DevToolsProtocol::Response> response);
 
  private:
-  RawMessageCallback raw_message_callback_;
+  EventCallback event_callback_;
+  ResponseCallback response_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsProtocolClient);
 };