small misspelling fixes.

src/extensions/statistics-extension.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 90 matching lines @@
   FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(ADD_COUNTER)
 #undef ADD_COUNTER
 
   AddNumber(result, isolate->memory_allocator()->Size(),
             "total_committed_bytes");
   AddNumber(result, heap->new_space()->Size(),
             "new_space_live_bytes");
   AddNumber(result, heap->new_space()->Available(),
             "new_space_available_bytes");
   AddNumber(result, heap->new_space()->CommittedMemory(),
-            "new_space_commited_bytes");
+            "new_space_committed_bytes");
   AddNumber(result, heap->old_pointer_space()->Size(),
             "old_pointer_space_live_bytes");
   AddNumber(result, heap->old_pointer_space()->Available(),
             "old_pointer_space_available_bytes");
   AddNumber(result, heap->old_pointer_space()->CommittedMemory(),
-            "old_pointer_space_commited_bytes");
+            "old_pointer_space_committed_bytes");
   AddNumber(result, heap->old_data_space()->Size(),
             "old_data_space_live_bytes");
   AddNumber(result, heap->old_data_space()->Available(),
             "old_data_space_available_bytes");
   AddNumber(result, heap->old_data_space()->CommittedMemory(),
-            "old_data_space_commited_bytes");
+            "old_data_space_committed_bytes");
   AddNumber(result, heap->code_space()->Size(),
             "code_space_live_bytes");
   AddNumber(result, heap->code_space()->Available(),
             "code_space_available_bytes");
   AddNumber(result, heap->code_space()->CommittedMemory(),
-            "code_space_commited_bytes");
+            "code_space_committed_bytes");
   AddNumber(result, heap->cell_space()->Size(),
             "cell_space_live_bytes");
   AddNumber(result, heap->cell_space()->Available(),
             "cell_space_available_bytes");
   AddNumber(result, heap->cell_space()->CommittedMemory(),
-            "cell_space_commited_bytes");
+            "cell_space_committed_bytes");
   AddNumber(result, heap->lo_space()->Size(),
             "lo_space_live_bytes");
   AddNumber(result, heap->lo_space()->Available(),
             "lo_space_available_bytes");
   AddNumber(result, heap->lo_space()->CommittedMemory(),
-            "lo_space_commited_bytes");
+            "lo_space_committed_bytes");
   AddNumber(result, heap->amount_of_external_allocated_memory(),
             "amount_of_external_allocated_memory");
   return result;
 }
 
 
 void StatisticsExtension::Register() {
   static StatisticsExtension statistics_extension;
   static v8::DeclareExtension declaration(&statistics_extension);
 }
 
 } }  // namespace v8::internal