[Extension API Extern Generation] Support inline object definitions

tools/json_schema_compiler/h_generator.py

 # Copyright (c) 2012 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.
 
 import os
 
 from code import Code
 from model import PropertyType
 import cpp_util
 import schema_util
@@ skipping 271 matching lines @@
   def _GenerateEvent(self, event):
     """Generates the namespaces for an event.
     """
     c = Code()
     # TODO(kalman): use event.unix_name not Classname.
     event_namespace = cpp_util.Classname(event.name)
     (c.Append('namespace %s {' % event_namespace)
       .Append()
       .Concat(self._GenerateEventNameConstant(event))
       .Concat(self._GenerateCreateCallbackArguments(event))
-      .Eblock('}  // namespace %s' % event_namespace)
+      .Append('}  // namespace %s' % event_namespace)
     )
     return c
 
   def _GenerateFunction(self, function):
     """Generates the namespaces and structs for a function.
     """
     c = Code()
     # TODO(kalman): Use function.unix_name not Classname here.
     function_namespace = cpp_util.Classname(function.name)
     # Windows has a #define for SendMessage, so to avoid any issues, we need
@@ skipping 85 matching lines @@
     """Builds the parameter list for a function, given an array of parameters.
     """
     # |error| is populated with warnings and/or errors found during parsing.
     # |error| being set does not necessarily imply failure and may be
     # recoverable.
     # For example, optional properties may have failed to parse, but the
     # parser was able to continue.
     if self._generate_error_messages:
       params += ('base::string16* error',)
     return ', '.join(str(p) for p in params)