[Mojo Video Capture] Split OnIncomingCapturedVideoFrame() to OnNewBuffer() and OnFrameReadyInBuffer(

mojo/public/tools/bindings/generators/cpp_templates/wrapper_union_class_template_definition.tmpl

 template <typename UnionPtrType>
 {{union.name}}Ptr {{union.name}}::Clone() const {
   // Use UnionPtrType to prevent the compiler from trying to compile this
   // without being asked.
   UnionPtrType rv(New());
   switch (tag_) {
 {%- for field in union.fields %}
     case Tag::{{field.name|upper}}:
 {%-   if field.kind|is_object_kind or
          field.kind|is_any_handle_or_interface_kind %}
-      rv->set_{{field.name}}(mojo::internal::Clone(*data_.{{field.name}}));
+      rv->set_{{field.name}}(mojo::Clone(*data_.{{field.name}}));
 {%-   else %}
-      rv->set_{{field.name}}(mojo::internal::Clone(data_.{{field.name}}));
+      rv->set_{{field.name}}(mojo::Clone(data_.{{field.name}}));
 {%-   endif %}
       break;
 {%- endfor %}
   };
   return rv;
 }
 
 template <typename T,
           typename std::enable_if<std::is_same<
               T, {{union.name}}>::value>::type*>
 bool {{union.name}}::Equals(const T& other) const {
   if (tag_ != other.which())
     return false;
 
   switch (tag_) {
 {%- for field in union.fields %}
     case Tag::{{field.name|upper}}:
 {%-   if field.kind|is_object_kind or
          field.kind|is_any_handle_or_interface_kind %}
       return mojo::internal::Equals(*(data_.{{field.name}}), *(other.data_.{{field.name}}));
 {%-   else %}
       return mojo::internal::Equals(data_.{{field.name}}, other.data_.{{field.name}});
 {%-   endif %}
 {%- endfor %}
   };
 
   return false;
 }