Remove v8- prefix of file name in libsampler.

src/profiler/cpu-profiler.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_PROFILER_CPU_PROFILER_H_
 #define V8_PROFILER_CPU_PROFILER_H_
 
 #include <memory>
 
 #include "src/allocation.h"
 #include "src/base/atomic-utils.h"
 #include "src/base/atomicops.h"
 #include "src/base/platform/time.h"
 #include "src/compiler.h"
 #include "src/isolate.h"
-#include "src/libsampler/v8-sampler.h"
+#include "src/libsampler/sampler.h"
 #include "src/locked-queue.h"
 #include "src/profiler/circular-queue.h"
 #include "src/profiler/profiler-listener.h"
 #include "src/profiler/tick-sample.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class CodeEntry;
@@ skipping 205 matching lines @@
   bool is_profiling_;
 
   DISALLOW_COPY_AND_ASSIGN(CpuProfiler);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 
 #endif  // V8_PROFILER_CPU_PROFILER_H_