Make Zone::New() and Zone::NewArray() usable w/o v8.h.

src/zone.h

 // Copyright 2012 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.
 
 #ifndef V8_ZONE_H_
 #define V8_ZONE_H_
 
+#include <limits>
+
 #include "src/allocation.h"
 #include "src/base/logging.h"
 #include "src/globals.h"
 #include "src/hashmap.h"
 #include "src/list.h"
 #include "src/splay-tree.h"
 
 namespace v8 {
 namespace internal {
 
@@ skipping 13 matching lines @@
 
 // Note: The implementation is inherently not thread safe. Do not use
 // from multi-threaded code.
 
 class Zone {
  public:
   explicit Zone(Isolate* isolate);
   ~Zone();
   // Allocate 'size' bytes of memory in the Zone; expands the Zone by
   // allocating new segments of memory on demand using malloc().
-  inline void* New(int size);
+  void* New(int size);
 
   template <typename T>
-  inline T* NewArray(int length);
+  T* NewArray(int length) {
+    CHECK(std::numeric_limits<int>::max() / static_cast<int>(sizeof(T)) >
+          length);
+    return static_cast<T*>(New(length * sizeof(T)));
+  }
 
   // Deletes all objects and free all memory allocated in the Zone. Keeps one
   // small (size <= kMaximumKeptSegmentSize) segment around if it finds one.
   void DeleteAll();
 
   // Deletes the last small segment kept around by DeleteAll(). You
   // may no longer allocate in the Zone after a call to this method.
   void DeleteKeptSegment();
 
   // Returns true if more memory has been allocated in zones than
@@ skipping 179 matching lines @@
   void operator delete(void* pointer) { UNREACHABLE(); }
   void operator delete(void* pointer, Zone* zone) { UNREACHABLE(); }
 };
 
 
 typedef TemplateHashMapImpl<ZoneAllocationPolicy> ZoneHashMap;
 
 } }  // namespace v8::internal
 
 #endif  // V8_ZONE_H_