Introduce a RandonNumberGenerator class. Refactor the random/private_random uses in Isolate/Context.

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 25 matching lines @@
 
 #include <cmath>
 #include "api.h"
 #include "builtins.h"
 #include "counters.h"
 #include "cpu.h"
 #include "debug.h"
 #include "deoptimizer.h"
 #include "execution.h"
 #include "ic.h"
-#include "isolate.h"
+#include "isolate-inl.h"
 #include "jsregexp.h"
 #include "lazy-instance.h"
 #include "platform.h"
 #include "regexp-macro-assembler.h"
 #include "regexp-stack.h"
 #include "runtime.h"
 #include "serialize.h"
 #include "store-buffer-inl.h"
 #include "stub-cache.h"
 #include "token.h"
@@ skipping 55 matching lines @@
 // -----------------------------------------------------------------------------
 // Implementation of AssemblerBase
 
 AssemblerBase::AssemblerBase(Isolate* isolate, void* buffer, int buffer_size)
     : isolate_(isolate),
       jit_cookie_(0),
       enabled_cpu_features_(0),
       emit_debug_code_(FLAG_debug_code),
       predictable_code_size_(false) {
   if (FLAG_mask_constants_with_cookie && isolate != NULL)  {
-    jit_cookie_ = V8::RandomPrivate(isolate);
+    jit_cookie_ = isolate->random_number_generator()->NextInt();
   }
 
   if (buffer == NULL) {
     // Do our own buffer management.
     if (buffer_size <= kMinimalBufferSize) {
       buffer_size = kMinimalBufferSize;
       if (isolate->assembler_spare_buffer() != NULL) {
         buffer = isolate->assembler_spare_buffer();
         isolate->set_assembler_spare_buffer(NULL);
       }
@@ skipping 1543 matching lines @@
     assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position);
     state_.written_position = state_.current_position;
     written = true;
   }
 
   // Return whether something was written.
   return written;
 }
 
 } }  // namespace v8::internal