Rename webmodule codegen bits to WebAgentAPI.

third_party/WebKit/Source/bindings/templates/web_module_interface.h.tmpl

-{% filter format_blink_cpp_source_code %}
-
-{% include 'copyright_block.txt' %}
-
-#ifndef WEB_API_{{class_name.macro_case}}_H
-#define WEB_API_{{class_name.macro_case}}_H
-
-{% for include_file in header_includes %}
-#include "{{include_file}}"
-{% endfor %}
-
-namespace blink {
-class {{class_name.upper_camel_case}};
-}
-
-namespace web {
-
-class {{class_name.upper_camel_case}} : public {% if not base_class -%}
-  blink::GarbageCollected<{{class_name.upper_camel_case}}>
-{%- else -%}
-  {{base_class}}
-{%- endif %} {
- public:
-  virtual ~{{class_name.upper_camel_case}}() = default;
-
-  static {{class_name.upper_camel_case}}* Create(blink::{{class_name.upper_camel_case}}*);
-
-{% if not base_class %}
-  DECLARE_TRACE();
-{% endif %}
-
- protected:
-  explicit {{class_name.upper_camel_case}}(blink::{{class_name.upper_camel_case}}* {{class_name.snake_case}});
-  blink::{{class_name.upper_camel_case}}* {{class_name.snake_case}}() const;
-
-{% if not base_class %}
- private:
-  blink::Member<blink::{{class_name.upper_camel_case}}> {{class_name.snake_case}}_;
-{% endif %}
-};
-
-}  // namespace web
-
-#endif  // WEB_API_{{class_name.macro_case}}_H
-
-{% endfilter %}