Move type converter unittests to separate binary

mojo/common/BUILD.gn

 # 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.
 
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 
 source_set("common") {
   sources = [
     "binding_set.h",
@@ skipping 25 matching lines @@
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/bindings:callback",
     "//mojo/public/cpp/system",
     "//testing/gtest",
   ]
 }
 
 test("mojo_common_unittests") {
   deps = [
     ":tests",
-    "//mojo/converters/array_string:tests",
-    "//mojo/converters/base:tests",
-    "//mojo/converters/url:tests",
     "//mojo/data_pipe_utils:tests",
     "//mojo/edk/test:run_all_unittests",
     "//mojo/environment:chromium",
     "//mojo/message_pump:tests",
   ]
 }
 
 mojom("test_interfaces") {
   testonly = true
   sources = [
     "test_interfaces.mojom",
   ]
 }
 
 source_set("tracing_impl") {
   sources = [
     "trace_provider_impl.cc",
     "trace_provider_impl.h",
     "tracing_impl.cc",
     "tracing_impl.h",
   ]
 
   deps = [
     "//base",
     "//mojo/public/cpp/application",
     "//mojo/public/cpp/bindings",
     "//mojo/services/tracing/interfaces",
   ]
 }