[inspector_protocol] Support features for content/ generator.

templates/TypeBuilder_h.template

 // This file is generated
 
 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef {{"_".join(config.protocol.namespace)}}_{{domain.domain}}_h
 #define {{"_".join(config.protocol.namespace)}}_{{domain.domain}}_h
 
 {% if config.protocol.export_header %}
@@ skipping 186 matching lines @@
       {%- for parameter in command.returns -%}
         {%- if "optional" in parameter -%}
             Maybe<{{resolve_type(parameter).raw_type}}> {{parameter.name}}
         {%- else -%}
                 {{resolve_type(parameter).pass_type}} {{parameter.name}}
         {%- endif -%}
         {%- if not loop.last -%}, {% endif -%}
       {%- endfor -%}
         ) = 0;
         virtual void sendFailure(const DispatchResponse&) = 0;
+        virtual void fallThrough() = 0;
         virtual ~{{command.name | to_title_case}}Callback() { }
     };
     {% endif %}
     {%- if not is_async_command(domain.domain, command.name) %}
     virtual DispatchResponse {{command.name | to_method_case}}(
     {%- else %}
     virtual void {{command.name | to_method_case}}(
     {%- endif %}
     {%- for parameter in command.parameters -%}
       {%- if not loop.first -%}, {% endif -%}
@@ skipping 39 matching lines @@
       {%- if "optional" in parameter -%}
         Maybe<{{resolve_type(parameter).raw_type}}> {{parameter.name}} = Maybe<{{resolve_type(parameter).raw_type}}>()
       {%- else -%}
         {{resolve_type(parameter).pass_type}} {{parameter.name}}
       {%- endif -%}{%- if not loop.last -%}, {% endif -%}
     {%- endfor -%}
     );
   {% endfor %}
 
     void flush();
+    void sendRawNotification(const String&);
 private:
     FrontendChannel* m_frontendChannel;
 };
 
 // ------------- Dispatcher.
 
 class {{config.protocol.export_macro}} Dispatcher {
 public:
     static void wire(UberDispatcher*, Backend*);
 
@@ skipping 12 matching lines @@
     static const char commandPrefix[];
     static const char version[];
 };
 
 } // namespace {{domain.domain}}
 {% for namespace in config.protocol.namespace %}
 } // namespace {{namespace}}
 {% endfor %}
 
 #endif // !defined({{"_".join(config.protocol.namespace)}}_{{domain.domain}}_h)