Reland of "[heap] Switch to 500k pages"

test/cctest/heap/test-heap.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 5580 matching lines @@
 
 static void RequestInterrupt(const v8::FunctionCallbackInfo<v8::Value>& args) {
   CcTest::isolate()->RequestInterrupt(&InterruptCallback357137, NULL);
 }
 
 
 UNINITIALIZED_TEST(Regress538257) {
   i::FLAG_manual_evacuation_candidates_selection = true;
   v8::Isolate::CreateParams create_params;
   // Set heap limits.
-  create_params.constraints.set_max_semi_space_size(1 * Page::kPageSize / MB);
-  create_params.constraints.set_max_old_space_size(6 * Page::kPageSize / MB);
+  create_params.constraints.set_max_semi_space_size(1);
+  create_params.constraints.set_max_old_space_size(6);
   create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
   v8::Isolate* isolate = v8::Isolate::New(create_params);
   isolate->Enter();
   {
     i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
     Heap* heap = i_isolate->heap();
     HandleScope handle_scope(i_isolate);
     PagedSpace* old_space = heap->old_space();
     const int kMaxObjects = 10000;
     const int kFixedArrayLen = 512;
@@ skipping 1494 matching lines @@
       chunk, chunk->area_end() - kPointerSize, chunk->area_end());
   slots[chunk->area_end() - kPointerSize] = false;
   RememberedSet<OLD_TO_NEW>::Iterate(chunk, [&slots](Address addr) {
     CHECK(slots[addr]);
     return KEEP_SLOT;
   });
 }
 
 }  // namespace internal
 }  // namespace v8