[heap] Use size_t for heap and space counters.

src/extensions/statistics-extension.cc

Index: src/extensions/statistics-extension.cc
diff --git a/src/extensions/statistics-extension.cc b/src/extensions/statistics-extension.cc
index da533363af57bd62ce7b05f3b23df99fef1e980c..ad412975cf489e4b62eb68ed3cd73825e8a19cff 100644
--- a/src/extensions/statistics-extension.cc
+++ b/src/extensions/statistics-extension.cc
@@ -35,14 +35,14 @@ static void AddCounter(v8::Isolate* isolate,
   }
 }
 
-static void AddNumber(v8::Isolate* isolate,
-                      v8::Local<v8::Object> object,
-                      intptr_t value,
-                      const char* name) {
-  object->Set(isolate->GetCurrentContext(),
-              v8::String::NewFromUtf8(isolate, name, NewStringType::kNormal)
-                  .ToLocalChecked(),
-              v8::Number::New(isolate, static_cast<double>(value))).FromJust();
+static void AddNumber(v8::Isolate* isolate, v8::Local<v8::Object> object,
+                      double value, const char* name) {
+  object
+      ->Set(isolate->GetCurrentContext(),
+            v8::String::NewFromUtf8(isolate, name, NewStringType::kNormal)
+                .ToLocalChecked(),
+            v8::Number::New(isolate, value))
+      .FromJust();
 }
 
 
@@ -112,29 +112,24 @@ void StatisticsExtension::GetCounters(
   }
 
   struct StatisticNumber {
-    intptr_t number;
+    size_t number;
     const char* name;
   };
 
   const StatisticNumber numbers[] = {
-      {static_cast<intptr_t>(heap->memory_allocator()->Size()),
-       "total_committed_bytes"},
+      {heap->memory_allocator()->Size(), "total_committed_bytes"},
       {heap->new_space()->Size(), "new_space_live_bytes"},
       {heap->new_space()->Available(), "new_space_available_bytes"},
-      {static_cast<intptr_t>(heap->new_space()->CommittedMemory()),
-       "new_space_commited_bytes"},
+      {heap->new_space()->CommittedMemory(), "new_space_commited_bytes"},
       {heap->old_space()->Size(), "old_space_live_bytes"},
       {heap->old_space()->Available(), "old_space_available_bytes"},
-      {static_cast<intptr_t>(heap->old_space()->CommittedMemory()),
-       "old_space_commited_bytes"},
+      {heap->old_space()->CommittedMemory(), "old_space_commited_bytes"},
       {heap->code_space()->Size(), "code_space_live_bytes"},
       {heap->code_space()->Available(), "code_space_available_bytes"},
-      {static_cast<intptr_t>(heap->code_space()->CommittedMemory()),
-       "code_space_commited_bytes"},
+      {heap->code_space()->CommittedMemory(), "code_space_commited_bytes"},
       {heap->lo_space()->Size(), "lo_space_live_bytes"},
       {heap->lo_space()->Available(), "lo_space_available_bytes"},
-      {static_cast<intptr_t>(heap->lo_space()->CommittedMemory()),
-       "lo_space_commited_bytes"},
+      {heap->lo_space()->CommittedMemory(), "lo_space_commited_bytes"},
   };
 
   for (size_t i = 0; i < arraysize(numbers); i++) {