Get rid of distinction between below- and above-watermark in page allocation....

src/store-buffer.cc

-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright 2011 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
 //       with the distribution.
@@ skipping 355 matching lines @@
     // TODO(gc): Make the disabling of the store buffer dependendent on
     // those two measures failing:
     // After compression not enough space was freed up in the store buffer.  We
     // might as well stop sorting and trying to eliminate duplicates.
     Counters::store_buffer_overflows.Increment();
     set_store_buffer_mode(kStoreBufferDisabled);
   }
 }
 
 } }  // namespace v8::internal