Implement a simple ThreadChecker for Mojo and add to |internal::SharedData| and |internal::Router|.

third_party/mojo/mojo_public.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.
 
 {
   'includes': [
     'mojo_variables.gypi',
   ],
   'target_defaults' : {
     'include_dirs': [
@@ skipping 132 matching lines @@
         'src/mojo/public/cpp/bindings/lib/message_header_validator.cc',
         'src/mojo/public/cpp/bindings/lib/message_header_validator.h',
         'src/mojo/public/cpp/bindings/lib/message_internal.h',
         'src/mojo/public/cpp/bindings/lib/no_interface.cc',
         'src/mojo/public/cpp/bindings/lib/router.cc',
         'src/mojo/public/cpp/bindings/lib/router.h',
         'src/mojo/public/cpp/bindings/lib/shared_data.h',
         'src/mojo/public/cpp/bindings/lib/shared_ptr.h',
         'src/mojo/public/cpp/bindings/lib/string_serialization.h',
         'src/mojo/public/cpp/bindings/lib/string_serialization.cc',
+        'src/mojo/public/cpp/bindings/lib/thread_checker.h',
+        'src/mojo/public/cpp/bindings/lib/thread_checker_posix.cc',
+        'src/mojo/public/cpp/bindings/lib/thread_checker_posix.h',
         'src/mojo/public/cpp/bindings/lib/validate_params.h',
         'src/mojo/public/cpp/bindings/lib/validation_errors.cc',
         'src/mojo/public/cpp/bindings/lib/validation_errors.h',
         'src/mojo/public/cpp/bindings/lib/validation_util.cc',
         'src/mojo/public/cpp/bindings/lib/validation_util.h',
         'src/mojo/public/cpp/bindings/lib/value_traits.h',
         # This comes from the mojo_interface_bindings_cpp_sources dependency.
         '>@(mojom_generated_sources)',
       ],
       'dependencies': [
@@ skipping 227 matching lines @@
            'dependencies': [
              'mojo_interface_bindings_java_sources',
              'mojo_public_java',
            ],
            'includes': [ '../../build/java.gypi' ],
         },
       ],
     }],
   ],
 }