chromeos: adds TouchDeviceServer and wires up in mushrome

mojo/public/tools/bindings/mojom.gni

 # 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.
 
 declare_args() {
   # Indicates whether typemapping should be supported in this build
   # configuration. This may be disabled when building external projects which
   # depend on //mojo but which do not need/want all of the Chromium tree
   # dependencies that come with typemapping.
   #
@@ skipping 50 matching lines @@
       _typemap_config = typemap.config
       read_file(_typemap_config.mojom, "")
     }
     if (is_mac && defined(configuration.typemaps_mac)) {
       foreach(typemap, configuration.typemaps_mac) {
         _typemap_config = {
         }
         _typemap_config = typemap.config
         read_file(_typemap_config.mojom, "")
       }
+    } else if (is_chromeos && defined(configuration.typemaps_chromeos)) {
+      foreach(typemap, configuration.typemaps_chromeos) {
+        _typemap_config = {
+        }
+        _typemap_config = typemap.config
+        read_file(_typemap_config.mojom, "")
+      }
     }
   }
 } else {
   _bindings_configuration_files = []
   _bindings_configurations = [
     {
       typemaps = []
       component_macro_suffix = ""
     },
     {
@@ skipping 406 matching lines @@
         }
         if (is_mac && defined(bindings_configuration.typemaps_mac)) {
           foreach(typemap, bindings_configuration.typemaps_mac) {
             _typemap_config = {
             }
             _typemap_config = typemap.config
             if (get_path_info(source, "abspath") == _typemap_config.mojom) {
               active_typemaps += [ typemap ]
             }
           }
+        } else if (is_chromeos &&
+                   defined(bindings_configuration.typemaps_chromeos)) {
+          foreach(typemap, bindings_configuration.typemaps_chromeos) {
+            _typemap_config = {
+            }
+            _typemap_config = typemap.config
+            if (get_path_info(source, "abspath") == _typemap_config.mojom) {
+              active_typemaps += [ typemap ]
+            }
+          }
         }
       }
 
       if (defined(invoker.component_macro_prefix)) {
         export_header_generator_target_name =
             "${target_name}${variant_suffix}__generate_export_header"
         generated_export_header =
             rebase_path("${target_name}${variant_suffix}_export.h",
                         "",
                         target_gen_dir)
@@ skipping 346 matching lines @@
     forward_variables_from(invoker,
                            "*",
                            [
                              "output_prefix",
                              "macro_prefix",
                            ])
     component_output_prefix = invoker.output_prefix
     component_macro_prefix = invoker.macro_prefix
   }
 }