bindings: Use forward declarations for wrapper types in dictionary_impl

third_party/WebKit/Source/bindings/templates/dictionary_impl.cpp.tmpl

 {% filter format_blink_cpp_source_code %}
 
 {% include 'copyright_block.txt' %}
 #include "{{cpp_class}}.h"
 
 {% for filename in cpp_includes %}
 #include "{{filename}}"
 {% endfor %}
 
 namespace blink {
 
 {# Constructor #}
 {{cpp_class}}::{{cpp_class}}() {
   {% for member in members if member.cpp_default_value %}
   {{member.setter_name}}({{member.cpp_default_value}});
   {% endfor %}
 }
 
 {{cpp_class}}::~{{cpp_class}}() {}
 
+{{cpp_class}}::{{cpp_class}}(const {{cpp_class}}&) = default;

[Yuki, 2016/11/14 09:26:14]

I don't know well about the windows-specific issue, but if you can write "=
default" in the header, it's definitely better.

[bashi, 2016/11/14 22:08:49]

I had to write them in .cpp to avoid instanciation of HeapVector<Member<T>>.

+
+{{cpp_class}}& {{cpp_class}}::operator=(const {{cpp_class}}&) = default;
+
 {% for member in members %}
 bool {{cpp_class}}::{{member.has_method_name}}() const {
   return {{member.has_method_expression}};
 }
 {{member.rvalue_cpp_type}} {{cpp_class}}::{{member.cpp_name}}() const {
   {% if member.nullable_indicator_name %}
   DCHECK({{member.nullable_indicator_name}});
   {% endif %}
   return {{member.getter_expression}};
 }
@@ skipping 19 matching lines @@
   visitor->trace(m_{{member.cpp_name}});
   {% endfor %}
   {% if parent_cpp_class %}
   {{parent_cpp_class}}::trace(visitor);
   {% endif %}
 }
 
 }  // namespace blink
 
 {% endfilter %}{# format_blink_cpp_source_code #}