Split Ticker into two samplers.

src/profiler/cpu-profiler-inl.h

 // Copyright 2010 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_PROFILER_CPU_PROFILER_INL_H_
 #define V8_PROFILER_CPU_PROFILER_INL_H_
 
 #include "src/profiler/cpu-profiler.h"
 
 #include <new>
@@ skipping 32 matching lines @@
   CodeEntry* entry = code_map->FindEntry(start);
   if (!entry) {
     // Code objects for builtins should already have been added to the map but
     // some of them have been filtered out by CpuProfiler.
     return;
   }
   entry->SetBuiltinId(builtin_id);
 }
 
 
-TickSample* CpuProfiler::StartTickSample() {
-  if (is_profiling_) return processor_->StartTickSample();
-  return NULL;
-}
-
-
-void CpuProfiler::FinishTickSample() {
-  processor_->FinishTickSample();
-}
-
-
 TickSample* ProfilerEventsProcessor::StartTickSample() {
   void* address = ticks_buffer_.StartEnqueue();
   if (address == NULL) return NULL;
   TickSampleEventRecord* evt =
       new (address) TickSampleEventRecord(last_code_event_id_.Value());
   return &evt->sample;
 }
 
 
 void ProfilerEventsProcessor::FinishTickSample() {
   ticks_buffer_.FinishEnqueue();
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PROFILER_CPU_PROFILER_INL_H_