CPU profiler: limit the number of simultaneously collected profiles.

src/profile-generator.h

Index: src/profile-generator.h
diff --git a/src/profile-generator.h b/src/profile-generator.h
index 5611b6fa4ed3bf05f6937e3012a2f6781dab7796..c6d6f4cbc63fdd8d2cffb4b4b8bcb61302d22015 100644
--- a/src/profile-generator.h
+++ b/src/profile-generator.h
@@ -299,6 +299,9 @@ class CpuProfilesCollection {
   // Called from profile generator thread.
   void AddPathToCurrentProfiles(const Vector<CodeEntry*>& path);
 
+  // Limits the number of profiles that can be simultaneously collected.
+  static const int kMaxSimultaneousProfiles = 100;
+
  private:
   const char* GetName(int args_count);
   const char* GetFunctionName(String* name) {