Add tests for braille commands.

chrome/test/base/js2gtest.gni

 # Copyright 2015 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.
 
 import("//build/module_args/v8.gni")
 
+# Variables:
+#   test_type: One of 'webui', 'unit' or 'extension' indicating what
+#       environment the test runs under.
+#   sources: List of javascript test source files.
+#   deps_js: Javascript file with closure library dependencies.  Only needed
+#       if the test fixtures use closureModuleDeps.
+#   gen_include_files: List of javascript files used in GEN_INCLUDE calls
+#       in the tests and therefore considered input to the C++ generation step.
+#   extra_js_files: List of javascript files needed by the test at runtime,
+#       typically listed in the extraLibraries member of the test fixture.
+#   defines
+#   deps
+#   visibility
 template("js2gtest") {
   assert(defined(invoker.test_type) &&
          (invoker.test_type == "webui" || invoker.test_type == "unit" ||
           invoker.test_type == "extension"))
   action_name = target_name + "_action"
   source_set_name = target_name
 
   # The mapping from sources to the copied version.
   copied_source_pattern = "$root_out_dir/test_data/{{source_root_relative_dir}}/{{source_file_part}}"
 
@@ skipping 11 matching lines @@
 
     input_js = [
       "//chrome/third_party/mock4js/mock4js.js",
       "//chrome/test/data/webui/test_api.js",
       "//chrome/test/base/js2gtest.js",
     ]
     inputs = [ d8_path ] + input_js
     if (defined(invoker.deps_js)) {
       inputs += [ invoker.deps_js ]
     }
+    if (defined(invoker.gen_include_files)) {
+      inputs += invoker.gen_include_files
+    }
 
     # Outputs. The script will copy the source files to the output directory,
     # which then must be treated as runtime data. The generated .cc file isn't
     # data, it will be compiled in a step below.
     outputs = [
       "$target_gen_dir/{{source_name_part}}-gen.cc",
       copied_source_pattern,
     ]
     data = process_file_template(sources, [ copied_source_pattern ])
 
@@ skipping 57 matching lines @@
       "//url",
     ]
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
     if (defined(invoker.extra_js_files)) {
       data_deps = [ ":$copy_target_name" ]
     }
   }
 }