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diff --git a/media/webrtc/trunk/build/protoc.gypi b/media/webrtc/trunk/build/protoc.gypi
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+# 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.
+
+# This file is meant to be included into a target to provide a rule
+# to invoke protoc in a consistent manner.
+#
+# To use this, create a gyp target with the following form:
+# {
+#   'target_name': 'my_proto_lib',
+#   'type': 'static_library',
+#   'sources': [
+#     'foo.proto',
+#     'bar.proto',
+#   ],
+#   'variables': {
+#     # Optional, see below: 'proto_in_dir': '.'
+#     'proto_out_dir': 'dir/for/my_proto_lib'
+#   },
+#   'includes': ['path/to/this/gypi/file'],
+# }
+# If necessary, you may add normal .cc files to the sources list or other gyp
+# dependencies.  The proto headers are guaranteed to be generated before any
+# source files, even within this target, are compiled.
+#
+# The 'proto_in_dir' variable must be the relative path to the
+# directory containing the .proto files.  If left out, it defaults to '.'.
+#
+# The 'proto_out_dir' variable specifies the path suffix that output
+# files are generated under.  Targets that gyp-depend on my_proto_lib
+# will be able to include the resulting proto headers with an include
+# like:
+#   #include "dir/for/my_proto_lib/foo.pb.h"
+#
+# If you need to add an EXPORT macro to a protobuf's c++ header, set the
+# 'cc_generator_options' variable with the value: 'dllexport_decl=FOO_EXPORT:'
+# e.g. 'dllexport_decl=BASE_EXPORT:'
+#
+# It is likely you also need to #include a file for the above EXPORT macro to
+# work. You can do so with the 'cc_include' variable.
+# e.g. 'base/base_export.h'
+#
+# Implementation notes:
+# A proto_out_dir of foo/bar produces
+#   <(SHARED_INTERMEDIATE_DIR)/protoc_out/foo/bar/{file1,file2}.pb.{cc,h}
+#   <(SHARED_INTERMEDIATE_DIR)/pyproto/foo/bar/{file1,file2}_pb2.py
+
+{
+  'variables': {
+    'protoc_wrapper': '<(DEPTH)/tools/protoc_wrapper/protoc_wrapper.py',
+    'protoc': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)protoc<(EXECUTABLE_SUFFIX)',
+    'cc_dir': '<(SHARED_INTERMEDIATE_DIR)/protoc_out/<(proto_out_dir)',
+    'py_dir': '<(PRODUCT_DIR)/pyproto/<(proto_out_dir)',
+    'cc_generator_options%': '',
+    'cc_include%': '',
+    'proto_in_dir%': '.',
+  },
+  'rules': [
+    {
+      'rule_name': 'genproto',
+      'extension': 'proto',
+      'inputs': [
+        '<(protoc_wrapper)',
+        '<(protoc)',
+      ],
+      'outputs': [
+        '<(py_dir)/<(RULE_INPUT_ROOT)_pb2.py',
+        '<(cc_dir)/<(RULE_INPUT_ROOT).pb.cc',
+        '<(cc_dir)/<(RULE_INPUT_ROOT).pb.h',
+      ],
+      'action': [
+        'python',
+        '<(protoc_wrapper)',
+        '--include',
+        '<(cc_include)',
+        '--protobuf',
+        '<(cc_dir)/<(RULE_INPUT_ROOT).pb.h',
+        '--',
+        '<(protoc)',
+        # Using the --arg val form (instead of --arg=val) allows gyp's msvs rule
+        # generation to correct 'val' which is a path.
+        '--proto_path','<(proto_in_dir)',
+        # Naively you'd use <(RULE_INPUT_PATH) here, but protoc requires
+        # --proto_path is a strict prefix of the path given as an argument.
+        '<(proto_in_dir)/<(RULE_INPUT_ROOT)<(RULE_INPUT_EXT)',
+        '--cpp_out', '<(cc_generator_options)<(cc_dir)',
+        '--python_out', '<(py_dir)',
+      ],
+      'msvs_cygwin_shell': 0,
+      'message': 'Generating C++ and Python code from <(RULE_INPUT_PATH)',
+      'process_outputs_as_sources': 1,
+    },
+  ],
+  'dependencies': [
+    '<(DEPTH)/third_party/protobuf/protobuf.gyp:protoc#host',
+    '<(DEPTH)/third_party/protobuf/protobuf.gyp:protobuf_lite',
+  ],
+  'include_dirs': [
+    '<(SHARED_INTERMEDIATE_DIR)/protoc_out',
+    '<(DEPTH)',
+  ],
+  'direct_dependent_settings': {
+    'include_dirs': [
+      '<(SHARED_INTERMEDIATE_DIR)/protoc_out',
+      '<(DEPTH)',
+    ]
+  },
+  'export_dependent_settings': [
+    # The generated headers reference headers within protobuf_lite,
+    # so dependencies must be able to find those headers too.
+    '<(DEPTH)/third_party/protobuf/protobuf.gyp:protobuf_lite',
+  ],
+  # This target exports a hard dependency because it generates header
+  # files.
+  'hard_dependency': 1,
+}