Fix remaining issues in the custom snapshot.

src/bootstrapper.cc

 // Copyright 2014 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.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/code-stubs.h"
 #include "src/extensions/externalize-string-extension.h"
 #include "src/extensions/free-buffer-extension.h"
@@ skipping 2773 matching lines @@
     MakeFunctionInstancePrototypeWritable();
 
     if (!ConfigureGlobalObjects(global_proxy_template)) return;
     isolate->counters()->contexts_created_from_scratch()->Increment();
   }
 
   // Install experimental natives.
   if (!InstallExperimentalNatives()) return;
   InitializeExperimentalGlobal();
 
-  // We can't (de-)serialize typed arrays currently, but we are lucky: The state
-  // of the random number generator needs no initialization during snapshot
-  // creation time and we don't need trigonometric functions then.
-  if (!isolate->serializer_enabled()) {
+  // The serializer cannot serialize typed arrays. Reset those typed arrays
+  // for each new context.
+  {
     // Initially seed the per-context random number generator using the
     // per-isolate random number generator.
     const int num_elems = 2;
     const int num_bytes = num_elems * sizeof(uint32_t);
     uint32_t* state = reinterpret_cast<uint32_t*>(malloc(num_bytes));
 
     do {
       isolate->random_number_generator()->NextBytes(state, num_bytes);
     } while (state[0] == 0 || state[1] == 0);
 
@@ skipping 47 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 } }  // namespace v8::internal