Revert 120063 - Remove hand-rolled cases of protobufs generations/compilation

chrome/app/policy/cloud_policy_codegen.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
     'policy_out_dir': '<(SHARED_INTERMEDIATE_DIR)/policy',
     'protoc_out_dir': '<(SHARED_INTERMEDIATE_DIR)/protoc_out',
     'generate_policy_source_script_path':
@@ skipping 42 matching lines @@
       'direct_dependent_settings': {
         'include_dirs': [
           '<(policy_out_dir)',
           '<(protoc_out_dir)',
         ],
       },
     },
     {
       'target_name': 'cloud_policy_proto_compile',
       'type': 'none',
-      'sources': [
-        '<(policy_out_dir)/policy/cloud_policy.proto',
+      'actions': [
+        {
+          'action_name': 'compile_generated_proto',
+          'inputs': [
+            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)protoc<(EXECUTABLE_SUFFIX)',
+            '<(policy_out_dir)/policy/cloud_policy.proto',
+          ],
+          'outputs': [
+            '<(PRODUCT_DIR)/pyproto/device_management_pb/cloud_policy_pb2.py',
+            '<(protoc_out_dir)/<(proto_path_substr)/cloud_policy.pb.h',
+            '<(protoc_out_dir)/<(proto_path_substr)/cloud_policy.pb.cc',
+          ],
+          'action': [
+            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)protoc<(EXECUTABLE_SUFFIX)',
+            '--proto_path=<(policy_out_dir)/policy',
+            '<(policy_out_dir)/policy/cloud_policy.proto',
+            '--cpp_out=<(protoc_out_dir)/<(proto_path_substr)',
+            '--python_out=<(PRODUCT_DIR)/pyproto/device_management_pb',
+          ],
+          'message': 'Compiling generated cloud policy protobuf',
+        },
       ],
-      'variables': {
-        'proto_in_dir': '<(policy_out_dir)/policy',
-        'proto_out_dir': '<(proto_path_substr)',
-      },
       'dependencies': [
+        '<(DEPTH)/third_party/protobuf/protobuf.gyp:protoc#host',
         'cloud_policy_code_generate',
       ],
-      'includes': [ '../../../build/protoc.gypi' ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '<(protoc_out_dir)',
+        ]
+      },
     },
     {
       'target_name': 'cloud_policy_backend_header_compile',
       'type': 'none',
       'sources': [
         '<(proto_rel_path)/chrome_device_policy.proto',
         '<(proto_rel_path)/device_management_backend.proto',
         '<(proto_rel_path)/device_management_local.proto',
         '<(proto_rel_path)/old_generic_format.proto',
       ],
-      'variables': {
-        'proto_in_dir': '<(proto_rel_path)',
-        'proto_out_dir': '<(proto_path_substr)',
+      'rules': [
+        {
+          'rule_name': 'gen_proto',
+          'extension': 'proto',
+          'inputs': [
+            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)protoc<(EXECUTABLE_SUFFIX)',
+          ],
+          'outputs': [
+            '<(PRODUCT_DIR)/pyproto/device_management_pb/<(RULE_INPUT_ROOT)_pb2.py',
+            '<(protoc_out_dir)/<(proto_path_substr)/<(RULE_INPUT_ROOT).pb.h',
+            '<(protoc_out_dir)/<(proto_path_substr)/<(RULE_INPUT_ROOT).pb.cc',
+          ],
+          'action': [
+            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)protoc<(EXECUTABLE_SUFFIX)',
+            '--proto_path=<(proto_rel_path)',
+            '<(proto_rel_path)/<(RULE_INPUT_NAME)',
+            '--cpp_out=<(protoc_out_dir)/<(proto_path_substr)',
+            '--python_out=<(PRODUCT_DIR)/pyproto/device_management_pb',
+          ],
+          'message': 'Generating C++ and Python code from <(RULE_INPUT_PATH)',
+        },
+      ],
+      'dependencies': [
+        '<(DEPTH)/third_party/protobuf/protobuf.gyp:protoc#host',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '<(protoc_out_dir)',
+        ]
       },
-      'dependencies': [
-        'cloud_policy_code_generate',
-      ],
-      'includes': [ '../../../build/protoc.gypi' ],
     },
     {
       'target_name': 'policy',
       'type': 'static_library',
       'hard_dependency': 1,
       'direct_dependent_settings': {
         'include_dirs': [
           '<(policy_out_dir)',
           '<(protoc_out_dir)',
         ],
@@ skipping 46 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }