Remove a static initializer that could potentially slow down startup time.

src/profile-generator.h

 // 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
@@ skipping 239 matching lines @@
     CodeEntryInfo(CodeEntry* an_entry, unsigned a_size)
         : entry(an_entry), size(a_size) { }
     CodeEntry* entry;
     unsigned size;
   };
 
   struct CodeTreeConfig {
     typedef Address Key;
     typedef CodeEntryInfo Value;
     static const Key kNoKey;
-    static const Value kNoValue;
+    static const Value NoValue() { return CodeEntryInfo(NULL, 0); }
     static int Compare(const Key& a, const Key& b) {
       return a < b ? -1 : (a > b ? 1 : 0);
     }
   };
   typedef SplayTree<CodeTreeConfig> CodeTree;
 
   class CodeTreePrinter {
    public:
     void Call(const Address& key, const CodeEntryInfo& value);
   };
@@ skipping 855 matching lines @@
 
   friend class HeapSnapshotJSONSerializerEnumerator;
   friend class HeapSnapshotJSONSerializerIterator;
 
   DISALLOW_COPY_AND_ASSIGN(HeapSnapshotJSONSerializer);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_PROFILE_GENERATOR_H_