chromeos: adds TouchDeviceServer and wires up in mushrome

mojo/public/tools/bindings/mojom.gni

Index: mojo/public/tools/bindings/mojom.gni
diff --git a/mojo/public/tools/bindings/mojom.gni b/mojo/public/tools/bindings/mojom.gni
index 8abf204275c754e657fbadfc598fe3ce58420492..1d3b81bfbe8208750b5bb7678713ba6b37549448 100644
--- a/mojo/public/tools/bindings/mojom.gni
+++ b/mojo/public/tools/bindings/mojom.gni
@@ -68,6 +68,13 @@ if (enable_mojom_typemapping) {
         _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 {
@@ -494,6 +501,16 @@ template("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 ]
+            }
+          }
         }
       }