Valgrind cleanliness, part 5: Delete extensions on exit.

src/v8.cc

 // Copyright 2012 the V8 project authors. 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.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 88 matching lines @@
 
 
 void V8::TearDown() {
   Isolate* isolate = Isolate::Current();
   ASSERT(isolate->IsDefaultIsolate());
 
   if (!has_been_set_up_ || has_been_disposed_) return;
 
   ElementsAccessor::TearDown();
   LOperand::TearDownCaches();
+  RegisteredExtension::UnregisterAll();
 
   isolate->TearDown();
   delete isolate;
 
   is_running_ = false;
   has_been_disposed_ = true;
 
   delete call_completed_callbacks_;
   call_completed_callbacks_ = NULL;
 }
@@ skipping 151 matching lines @@
   }
 
   LOperand::SetUpCaches();
 }
 
 void V8::InitializeOncePerProcess() {
   CallOnce(&init_once, &InitializeOncePerProcessImpl);
 }
 
 } }  // namespace v8::internal