Replace our homegrown ARRAY_SIZE() with Chrome's arraysize().

src/mksnapshot.cc

 // Copyright 2006-2008 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 <errno.h>
 #include <stdio.h>
 #ifdef COMPRESS_STARTUP_DATA_BZ2
 #include <bzlib.h>
 #endif
 #include <signal.h>
@@ skipping 73 matching lines @@
     i::List<i::byte> startup_blob;
     i::ListSnapshotSink sink(&startup_blob);
 
     int spaces[] = {
         i::NEW_SPACE, i::OLD_POINTER_SPACE, i::OLD_DATA_SPACE, i::CODE_SPACE,
         i::MAP_SPACE, i::CELL_SPACE,  i::PROPERTY_CELL_SPACE
     };
 
     i::byte* snapshot_bytes = snapshot_data.begin();
     sink.PutBlob(snapshot_bytes, snapshot_data.length(), "snapshot");
-    for (size_t i = 0; i < ARRAY_SIZE(spaces); ++i)
+    for (size_t i = 0; i < arraysize(spaces); ++i)
       sink.PutInt(serializer.CurrentAllocationAddress(spaces[i]), "spaces");
 
     i::byte* context_bytes = context_snapshot_data.begin();
     sink.PutBlob(context_bytes, context_snapshot_data.length(), "context");
-    for (size_t i = 0; i < ARRAY_SIZE(spaces); ++i)
+    for (size_t i = 0; i < arraysize(spaces); ++i)
       sink.PutInt(context_serializer.CurrentAllocationAddress(spaces[i]),
                   "spaces");
 
     size_t written = fwrite(startup_blob.begin(), 1, startup_blob.length(),
                             startup_blob_file_);
     if (written != (size_t)startup_blob.length()) {
       i::PrintF("Writing snapshot file failed.. Aborting.\n");
       exit(1);
     }
   }
@@ skipping 316 matching lines @@
       writer.WriteSnapshot(snapshot_data, ser, context_data, context_ser);
     }
   }
 
   isolate->Dispose();
   V8::Dispose();
   V8::ShutdownPlatform();
   delete platform;
   return 0;
 }