Separate the generated files from core and modules to their own sub-dirs.

Source/bindings/modules/generated.gyp

 # Copyright 2014 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.
 
 # Generate IDL interfaces info for modules, used to generate bindings
 #
 # Design doc: http://www.chromium.org/developers/design-documents/idl-build
 
 {
   'includes': [
@@ skipping 20 matching lines @@
           'event_idl_files_list':
               '<|(event_idl_files_list.tmp <@(event_idl_files))',
         },
         'inputs': [
           '<(bindings_scripts_dir)/generate_event_interfaces.py',
           '<(bindings_scripts_dir)/utilities.py',
           '<(event_idl_files_list)',
           '<@(event_idl_files)',
         ],
         'outputs': [
-          '<(blink_output_dir)/EventModulesInterfaces.in',
+          '<(modules_output_dir)/EventModulesInterfaces.in',
         ],
         'action': [
           'python',
           '<(bindings_scripts_dir)/generate_event_interfaces.py',
           '--event-idl-files-list',
           '<(event_idl_files_list)',
           '--event-interfaces-file',
-          '<(blink_output_dir)/EventModulesInterfaces.in',
+          '<(modules_output_dir)/EventModulesInterfaces.in',
           '--write-file-only-if-changed',
           '<(write_file_only_if_changed)',
           '--suffix',
           'Modules',
         ],
       },
       {
         'action_name': 'EventModulesFactory',
         'inputs': [
           '<@(make_event_factory_files)',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesInterfaces.in',
+          '<(modules_output_dir)/EventModulesInterfaces.in',
         ],
         'outputs': [
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModules.cpp',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesHeaders.h',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesInterfaces.h',
+          '<(modules_output_dir)/EventModules.cpp',
+          '<(modules_output_dir)/EventModulesHeaders.h',
+          '<(modules_output_dir)/EventModulesInterfaces.h',
         ],
         'action': [
           'python',
           '../../build/scripts/make_event_factory.py',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesInterfaces.in',
+          '<(modules_output_dir)/EventModulesInterfaces.in',
           '--output_dir',
-          '<(SHARED_INTERMEDIATE_DIR)/blink',
+          '<(modules_output_dir)',
         ],
       },
       {
         'action_name': 'EventModulesNames',
         'inputs': [
           '<@(make_names_files)',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesInterfaces.in',
+          '<(modules_output_dir)/EventModulesInterfaces.in',
         ],
         'outputs': [
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesNames.cpp',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesNames.h',
+          '<(modules_output_dir)/EventModulesNames.cpp',
+          '<(modules_output_dir)/EventModulesNames.h',
         ],
         'action': [
           'python',
           '../../build/scripts/make_names.py',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventModulesInterfaces.in',
+          '<(modules_output_dir)/EventModulesInterfaces.in',
           '--output_dir',
-          '<(SHARED_INTERMEDIATE_DIR)/blink',
+          '<(modules_output_dir)',
         ],
       },
       {
         'action_name': 'EventTargetModulesFactory',
         'inputs': [
           '<@(make_event_factory_files)',
           '../../modules/EventTargetModulesFactory.in',
         ],
         'outputs': [
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventTargetModulesHeaders.h',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventTargetModulesInterfaces.h',
+          '<(modules_output_dir)/EventTargetModulesHeaders.h',
+          '<(modules_output_dir)/EventTargetModulesInterfaces.h',
         ],
         'action': [
           'python',
           '../../build/scripts/make_event_factory.py',
           '../../modules/EventTargetModulesFactory.in',
           '--output_dir',
-          '<(SHARED_INTERMEDIATE_DIR)/blink',
+          '<(modules_output_dir)',
         ],
       },
       {
         'action_name': 'EventTargetModulesNames',
         'inputs': [
           '<@(make_names_files)',
           '../../modules/EventTargetModulesFactory.in',
         ],
         'outputs': [
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventTargetModulesNames.cpp',
-          '<(SHARED_INTERMEDIATE_DIR)/blink/EventTargetModulesNames.h',
+          '<(modules_output_dir)/EventTargetModulesNames.cpp',
+          '<(modules_output_dir)/EventTargetModulesNames.h',
         ],
         'action': [
           'python',
           '../../build/scripts/make_names.py',
           '../../modules/EventTargetModulesFactory.in',
           '--output_dir',
-          '<(SHARED_INTERMEDIATE_DIR)/blink',
+          '<(modules_output_dir)',
         ],
       },
     ],
   },
   {
     'target_name': 'interfaces_info_individual_modules',
     'type': 'none',
     'dependencies': [
       # FIXME: should be modules_generated_idls
       # http://crbug.com/358074
@@ skipping 58 matching lines @@
         '<(bindings_core_output_dir)/InterfacesInfoCoreIndividual.pickle',
         '<(bindings_modules_output_dir)/InterfacesInfoModulesIndividual.pickle',
         '<(bindings_modules_output_dir)/InterfacesInfoModules.pickle',
       ],
       'message': 'Computing overall global information about IDL files',
       }]
   },
 ################################################################################
   ],  # targets
 }