[DevTools] Migrate DevToolsTracingHandler to generated handler.

content/browser/devtools/protocol/devtools_protocol_client.cc

Index: content/browser/devtools/protocol/devtools_protocol_client.cc
diff --git a/content/browser/devtools/protocol/devtools_protocol_client.cc b/content/browser/devtools/protocol/devtools_protocol_client.cc
index a0d9547d1bc675750f337a96cac055b64245b99e..512a9f4e6a47168dec6e6e6adc7ba0d6a6c0da31 100644
--- a/content/browser/devtools/protocol/devtools_protocol_client.cc
+++ b/content/browser/devtools/protocol/devtools_protocol_client.cc
@@ -8,9 +8,11 @@ namespace content {
 
 DevToolsProtocolClient::DevToolsProtocolClient(
     const EventCallback& event_callback,
-    const ResponseCallback& response_callback)
+    const ResponseCallback& response_callback,
+    const RawMessageCallback& raw_message_callback)
     : event_callback_(event_callback),
-      response_callback_(response_callback) {
+      response_callback_(response_callback),
+      raw_message_callback_(raw_message_callback) {
 }
 
 DevToolsProtocolClient::~DevToolsProtocolClient() {
@@ -26,6 +28,10 @@ void DevToolsProtocolClient::SendAsyncResponse(
   response_callback_.Run(response);
 }
 
+void DevToolsProtocolClient::SendRawMessage(const std::string& message) {
+  raw_message_callback_.Run(message);
+}
+
 void DevToolsProtocolClient::SendInvalidParamsResponse(
     scoped_refptr<DevToolsProtocol::Command> command,
     const std::string& message) {