[DevTools] Migrate DevToolsTracingHandler to generated handler.

content/browser/devtools/protocol/devtools_protocol_handler_generator.py

Index: content/browser/devtools/protocol/devtools_protocol_handler_generator.py
diff --git a/content/browser/devtools/protocol/devtools_protocol_handler_generator.py b/content/browser/devtools/protocol/devtools_protocol_handler_generator.py
index aa7c507a1ba482d87c51834eb32f78b8d4403c27..fd807c9999e429d63a7a83967f7008bf07d4a1cc 100755
--- a/content/browser/devtools/protocol/devtools_protocol_handler_generator.py
+++ b/content/browser/devtools/protocol/devtools_protocol_handler_generator.py
@@ -121,7 +121,8 @@ namespace ${domain} {
 class Client : public DevToolsProtocolClient {
  public:
   Client(const EventCallback& event_callback,
-         const ResponseCallback& response_callback);
+         const ResponseCallback& response_callback,
+         const RawMessageCallback& raw_message_callback);
   virtual ~Client();
 
 ${methods}\
@@ -249,6 +250,8 @@ tmpl_init_client = string.Template("""\
           base::Bind(&DevToolsProtocolHandlerImpl::SendNotification,
                      base::Unretained(this)),
           base::Bind(&DevToolsProtocolHandlerImpl::SendAsyncResponse,
+                     base::Unretained(this)),
+          base::Bind(&DevToolsProtocolHandlerImpl::SendRawMessage,
                      base::Unretained(this)))));
 """)
 
@@ -359,8 +362,10 @@ tmpl_client_impl = string.Template("""\
 namespace ${domain} {
 
 Client::Client(const EventCallback& event_callback,
-               const ResponseCallback& response_callback)
-    : DevToolsProtocolClient(event_callback, response_callback) {
+               const ResponseCallback& response_callback,
+               const RawMessageCallback& raw_message_callback)
+    : DevToolsProtocolClient(
+          event_callback, response_callback, raw_message_callback) {
 }
 
 Client::~Client() {