Simplify ConfigureHeap and change --max_new_space_size to --max_semi_space_size.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index d39dca96bba8d5b60f46d0ec2e05f616cf71cd0e..af8f99197af75816147cf74f4f3bf3a5bd170243 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -3865,8 +3865,8 @@ class V8_EXPORT ResourceConstraints {
                          uint64_t virtual_memory_limit,
                          uint32_t number_of_processors);
 
-  int max_new_space_size() const { return max_new_space_size_; }
-  void set_max_new_space_size(int value) { max_new_space_size_ = value; }
+  int max_semi_space_size() const { return max_semi_space_size_; }
+  void set_max_semi_space_size(int value) { max_semi_space_size_ = value; }
   int max_old_space_size() const { return max_old_space_size_; }
   void set_max_old_space_size(int value) { max_old_space_size_ = value; }
   int max_executable_size() const { return max_executable_size_; }
@@ -3885,7 +3885,7 @@ class V8_EXPORT ResourceConstraints {
   }
 
  private:
-  int max_new_space_size_;
+  int max_semi_space_size_;
   int max_old_space_size_;
   int max_executable_size_;
   uint32_t* stack_limit_;