Add initial version of DevTools Profiler

webkit/glue/devtools/debugger_agent_impl.h

Index: webkit/glue/devtools/debugger_agent_impl.h
===================================================================
--- webkit/glue/devtools/debugger_agent_impl.h	(revision 15955)
+++ webkit/glue/devtools/debugger_agent_impl.h	(working copy)
@@ -5,6 +5,8 @@
 #ifndef WEBKIT_GLUE_DEVTOOLS_DEBUGGER_AGENT_IMPL_H_
 #define WEBKIT_GLUE_DEVTOOLS_DEBUGGER_AGENT_IMPL_H_
 
+#include <string>
+
 #include <wtf/HashSet.h>
 
 #include "v8.h"
@@ -36,8 +38,16 @@
   virtual void DebugBreak();
   virtual void GetContextId();
 
+  virtual void StartProfiling();
+
+  virtual void StopProfiling();
+
+  virtual void GetLogLines(int position);
+
   void DebuggerOutput(const std::string& out);
 
+  void DidGetLogLines(const std::string& log, int new_position);
+
   // Executes function with the given name in the utility context. Passes node
   // and json args as parameters. Note that the function called must be
   // implemented in the inject.js file.