Add remoting and PPAPI tests to GN build

remoting/tools/build/remoting_localize.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.
+
+# Calls the remoting_localize script with a jinja2 template.
+#
+# Arguments
+#
+#   sources (required)
+#     List of jinja2 files to load. This is the template.
+#
+#   locales (required)
+#     List of locales.
+#
+#   locale_dir (optional)
+#
+#   defines (optional)
+#     List of defines to pass to script.
+#     Example: defines = [ "FOO_HOST_PATH=bar" ]
+#
+#   variables (optional)
+#     List of variables to pass to script.
+#
+#   output (optiona)
+#     Substitution pattern for the output. Defaults to a file in the target
+#     gen dir with the extension stripped (normally the extension is ".jinja2"
+#     which then leaves the non-tempaltized file name).
+#   TODO(brettw) Need locale_output. This is a per-locale output file.
+#
+#   encoding (optional)
+#     String.
+#
+#   deps (optional)
+#   visibility (optional)
+template("remoting_localize") {
+  action_foreach(target_name) {
+    if (defined(invoker.visibility)) {
+      visibility = invoker.visibility
+    }
+
+    script = "//remoting/tools/build/remoting_localize.py"
+
+    sources = invoker.sources
+
+    if (defined(invoker.output)) {
+      outputs = [
+        invoker.output,
+      ]
+    } else {
+      outputs = [
+        "$target_gen_dir/{{source_name_part}}",
+      ]
+    }
+
+    args = []
+
+    if (defined(invoker.locale_dir)) {
+      args += [
+        "--locale_dir",
+        rebase_path(invoker.locale_dir, root_build_dir),
+      ]
+    }
+
+    # Add defines to command line.
+    if (defined(invoker.defines)) {
+      foreach(i, invoker.defines) {
+        args += [
+          "--define",
+          i,
+        ]
+      }
+    }
+
+    # Add variables to command line.
+    if (defined(invoker.variables)) {
+      foreach(i, invoker.variables) {
+        args += [
+          "--variables",
+          i,
+        ]
+      }
+    }
+
+    # The template file is required.
+    args += [
+      "--template",
+      "{{source}}",
+    ]
+
+    args += [
+      "--output",
+      rebase_path(outputs[0], root_build_dir),
+    ]
+
+    if (defined(invoker.encoding)) {
+      args += [
+        "--encoding",
+        invoker.encoding,
+      ]
+    }
+
+    args += invoker.locales
+
+    if (defined(invoker.deps)) {
+      deps = invoker.deps
+    } else {
+      deps = []
+    }
+
+    # This script reads the messages strings from the generated resource files.
+    deps += [ "//remoting/resources:strings" ]
+  }
+}