[--prof] Adding support for RuntimeCallTimerScope based tick separation

src/log.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_LOG_H_
 #define V8_LOG_H_
 
 #include <string>
 
 #include "src/allocation.h"
@@ skipping 50 matching lines @@
 
 // Forward declarations.
 class CodeEventListener;
 class CpuProfiler;
 class Isolate;
 class Log;
 class PositionsRecorder;
 class Profiler;
 class Ticker;
 struct TickSample;
+class RuntimeCallTimer;
 
 #undef LOG
 #define LOG(isolate, Call)                          \
   do {                                              \
     v8::internal::Logger* logger =                  \
         (isolate)->logger();                        \
     if (logger->is_logging())                       \
       logger->Call;                                 \
   } while (false)
 
@@ skipping 266 matching lines @@
   void MoveEventInternal(LogEventsAndTags event, Address from, Address to);
 
   // Used for logging stubs found in the snapshot.
   void LogCodeObject(Object* code_object);
 
   // Helper method. It resets name_buffer_ and add tag name into it.
   void InitNameBuffer(LogEventsAndTags tag);
 
   // Emits a profiler tick event. Used by the profiler thread.
   void TickEvent(TickSample* sample, bool overflow);
+  void RuntimeCallTimerEvent();
 
   PRINTF_FORMAT(2, 3) void ApiEvent(const char* format, ...);
 
   // Logs a StringEvent regardless of whether FLAG_log is true.
   void UncheckedStringEvent(const char* name, const char* value);
 
   // Logs an IntEvent regardless of whether FLAG_log is true.
   void UncheckedIntEvent(const char* name, int value);
   void UncheckedIntPtrTEvent(const char* name, intptr_t value);
 
@@ skipping 153 matching lines @@
 
   NameBuffer* name_buffer_;
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 
 #endif  // V8_LOG_H_