include: make HeapStatistics getters const correct

include/v8.h

 // 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 3896 matching lines @@
 
 /**
  * Collection of V8 heap information.
  *
  * Instances of this class can be passed to v8::V8::HeapStatistics to
  * get heap statistics from V8.
  */
 class V8_EXPORT HeapStatistics {
  public:
   HeapStatistics();
-  size_t total_heap_size() { return total_heap_size_; }
-  size_t total_heap_size_executable() { return total_heap_size_executable_; }
-  size_t total_physical_size() { return total_physical_size_; }
-  size_t used_heap_size() { return used_heap_size_; }
-  size_t heap_size_limit() { return heap_size_limit_; }
+  V8_INLINE size_t total_heap_size() const;
+  V8_INLINE size_t total_heap_size_executable() const;
+  V8_INLINE size_t total_physical_size() const;
+  V8_INLINE size_t used_heap_size() const;
+  V8_INLINE size_t heap_size_limit() const;
 
  private:
   size_t total_heap_size_;
   size_t total_heap_size_executable_;
   size_t total_physical_size_;
   size_t used_heap_size_;
   size_t heap_size_limit_;
 
   friend class V8;
   friend class Isolate;
@@ skipping 2555 matching lines @@
 void* Context::GetAlignedPointerFromEmbedderData(int index) {
 #ifndef V8_ENABLE_CHECKS
   typedef internal::Internals I;
   return I::ReadEmbedderData<void*>(this, index);
 #else
   return SlowGetAlignedPointerFromEmbedderData(index);
 #endif
 }
 
 
+size_t HeapStatistics::total_heap_size() const {
+  return total_heap_size_;
+}
+
+
+size_t HeapStatistics::total_heap_size_executable() const {
+  return total_heap_size_executable_;
+}
+
+
+size_t HeapStatistics::total_physical_size() const {
+  return total_physical_size_;
+}
+
+
+size_t HeapStatistics::used_heap_size() const {
+  return used_heap_size_;
+}
+
+
+size_t HeapStatistics::heap_size_limit() const {
+  return heap_size_limit_;
+}
+
+
 /**
  * \example shell.cc
  * A simple shell that takes a list of expressions on the
  * command-line and executes them.
  */
 
 
 /**
  * \example process.cc
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_