Telemetry / Devtools TraceHandler: exposes tracing via dev tools.

content/browser/debugger/devtools_http_handler_impl.h

Index: content/browser/debugger/devtools_http_handler_impl.h
diff --git a/content/browser/debugger/devtools_http_handler_impl.h b/content/browser/debugger/devtools_http_handler_impl.h
index c912b927d4c6eab3b7299b8e5f94cf4a4a566afc..af4346aa1e8f50c70b838631742f45b138dfe513 100644
--- a/content/browser/debugger/devtools_http_handler_impl.h
+++ b/content/browser/debugger/devtools_http_handler_impl.h
@@ -12,6 +12,7 @@
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "content/browser/debugger/devtools_trace_handler.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/devtools_http_handler.h"
 #include "content/public/browser/devtools_http_handler_delegate.h"
@@ -79,12 +80,14 @@ class DevToolsHttpHandlerImpl
   void OnJsonRequestUI(int connection_id,
                        const net::HttpServerRequestInfo& info);
   void OnThumbnailRequestUI(int connection_id,
-                       const net::HttpServerRequestInfo& info);
+                            const net::HttpServerRequestInfo& info);
   void OnDiscoveryPageRequestUI(int connection_id);
 
   void OnWebSocketRequestUI(int connection_id,
                             const net::HttpServerRequestInfo& info);
   void OnWebSocketMessageUI(int connection_id, const std::string& data);
+  void OnTraceRequestUI(int connection_id,
+                        const net::HttpServerRequestInfo& info);
   void OnCloseUI(int connection_id);
 
   void ResetHandlerThread();
@@ -133,6 +136,7 @@ class DevToolsHttpHandlerImpl
   RenderViewHostBinding* binding_;
   scoped_ptr<RenderViewHostBinding> default_binding_;
   NotificationRegistrar registrar_;
+  DevToolsTraceHandler devtools_trace_handler_;
   DISALLOW_COPY_AND_ASSIGN(DevToolsHttpHandlerImpl);
 };