API: Change AdjustAmountOfExternalAllocatedMemory calls to use int64_t instead of intptr_t

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 7e2eda2529cdd42e2eed94127c5421f46f0c019b..cbe9805929b51c7096f8e408e6f64b2674f79326 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -1497,8 +1497,8 @@ class Heap {
 
   // Adjusts the amount of registered external memory.
   // Returns the adjusted value.
-  inline intptr_t AdjustAmountOfExternalAllocatedMemory(
-      intptr_t change_in_bytes);
+  inline int64_t AdjustAmountOfExternalAllocatedMemory(
+      int64_t change_in_bytes);
 
   // This is only needed for testing high promotion mode.
   void SetNewSpaceHighPromotionModeActive(bool mode) {
@@ -1517,7 +1517,10 @@ class Heap {
   }
 
   inline intptr_t PromotedTotalSize() {
-    return PromotedSpaceSizeOfObjects() + PromotedExternalMemorySize();
+    int64_t total = PromotedSpaceSizeOfObjects() + PromotedExternalMemorySize();
+    if (total > kMaxInt) return static_cast<intptr_t>(kMaxInt);
+    if (total < 0) return 0;
+    return static_cast<intptr_t>(total);
   }
 
   inline intptr_t OldGenerationSpaceAvailable() {
@@ -1930,7 +1933,7 @@ class Heap {
   int gc_post_processing_depth_;
 
   // Returns the amount of external memory registered since last global gc.
-  intptr_t PromotedExternalMemorySize();
+  int64_t PromotedExternalMemorySize();
 
   unsigned int ms_count_;  // how many mark-sweep collections happened
   unsigned int gc_count_;  // how many gc happened
@@ -1984,10 +1987,10 @@ class Heap {
 
   // The amount of external memory registered through the API kept alive
   // by global handles
-  intptr_t amount_of_external_allocated_memory_;
+  int64_t amount_of_external_allocated_memory_;
 
   // Caches the amount of external memory registered at the last global gc.
-  intptr_t amount_of_external_allocated_memory_at_last_global_gc_;
+  int64_t amount_of_external_allocated_memory_at_last_global_gc_;
 
   // Indicates that an allocation has failed in the old generation since the
   // last GC.