[profiler] Tracing-based CPU profiler.

include/v8-profiler.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_V8_PROFILER_H_
 #define V8_V8_PROFILER_H_
 
 #include <vector>
 #include "v8.h"  // NOLINT(build/include)
 
@@ skipping 30 matching lines @@
 }  // namespace v8
 
 #ifdef V8_OS_WIN
 template class V8_EXPORT std::vector<v8::CpuProfileDeoptInfo>;
 #endif
 
 namespace v8 {
 
 /**
  * TracingCpuProfiler monitors tracing being enabled/disabled
- * and emits CpuProfile trace events once v8.cpu_profile2 tracing category
+ * and emits CpuProfile trace events once v8.cpu_profiler tracing category
  * is enabled. It has no overhead unless the category is enabled.
  */
 class V8_EXPORT TracingCpuProfiler {
  public:
   static std::unique_ptr<TracingCpuProfiler> Create(Isolate*);
   virtual ~TracingCpuProfiler() = default;
 
  protected:
   TracingCpuProfiler() = default;
 };
@@ skipping 826 matching lines @@
   uint32_t index;  // Index of the time interval that was changed.
   uint32_t count;  // New value of count field for the interval with this index.
   uint32_t size;  // New value of size field for the interval with this index.
 };
 
 
 }  // namespace v8
 
 
 #endif  // V8_V8_PROFILER_H_