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

test/cctest/test-strings.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 1221 matching lines @@
   string = v8::Utils::OpenHandle(v8::String::Cast(*result));
   CHECK(string->IsSlicedString());
   CHECK(SlicedString::cast(*string)->parent()->IsSeqString());
   CHECK_EQ(0, strcmp("cdefghijklmnopqrstuvwx", string->ToCString().get()));
 }
 
 
 UNINITIALIZED_TEST(OneByteArrayJoin) {
   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();
 
   {
     // String s is made of 2^17 = 131072 'c' characters and a is an array
     // starting with 'bad', followed by 2^14 times the string s. That means the
     // total length of the concatenated strings is 2^31 + 3. So on 32bit systems
     // summing the lengths of the strings (as Smis) overflows and wraps.
     LocalContext context(isolate);
@@ skipping 270 matching lines @@
   }
   {
     HandleScope scope(isolate);
     v8::Local<v8::Value> result = CompileRun(
         "String.fromCharCode(432, 432, 432, 432, 432, "
         "432, 432, 432, 432, 432, 432, 432, 432, 432, "
         "432, 432, 432, 432, 432, 432, 432, 432, 432)");
     CHECK(v8::Utils::OpenHandle(*result)->IsSeqTwoByteString());
   }
 }