[Extensions Bindings] Add a bridge to use current custom bindings

chrome/browser/extensions/native_bindings_apitest.cc

+// Copyright 2016 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.
+
+#include "base/command_line.h"
+#include "chrome/browser/extensions/extension_apitest.h"
+#include "extensions/common/switches.h"
+
+namespace extensions {
+
+// And end-to-end test for extension APIs using native bindings.
+class NativeBindingsApiTest : public ExtensionApiTest {
+ public:
+  NativeBindingsApiTest() {}
+  ~NativeBindingsApiTest() override {}
+
+  void SetUpCommandLine(base::CommandLine* command_line) override {
+    ExtensionApiTest::SetUpCommandLine(command_line);
+    // Note: We don't use a FeatureSwitch::ScopedOverride here because we need
+    // the switch to be propogated to the renderer, which doesn't happen with
+    // a ScopedOverride.
+    command_line->AppendSwitchASCII(switches::kNativeCrxBindings, "1");
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NativeBindingsApiTest);
+};
+
+IN_PROC_BROWSER_TEST_F(NativeBindingsApiTest, SimpleEndToEndTest) {
+  ASSERT_TRUE(RunExtensionTest("native_bindings")) << message_;
+}
+
+}  // namespace extensions