Add a JS stash client.

The stash client allows clients to stash services during renderer
shut-down and retrieve them during renderer start-up.

BUG=389016

Review URL: https://codereview.chromium.org/661423007

Cr-Commit-Position: refs/heads/master@{#315463}

1 files changed, 49 insertions, 0 deletions

diff --git a/extensions/renderer/mojo/stash_client_unittest.cc b/extensions/renderer/mojo/stash_client_unittest.cc
new file mode 100644
index 0000000..ec3dc3f
--- /dev/null
+++ b/extensions/renderer/mojo/stash_client_unittest.cc
@@ -0,0 +1,49 @@
+// 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.
+
+#include <vector>
+
+#include "extensions/browser/mojo/stash_backend.h"
+#include "extensions/common/mojo/stash.mojom.h"
+#include "extensions/renderer/api_test_base.h"
+#include "gin/dictionary.h"
+#include "grit/extensions_renderer_resources.h"
+#include "third_party/mojo/src/mojo/public/cpp/bindings/lib/message_builder.h"
+
+// A test launcher for tests for the stash client defined in
+// extensions/test/data/stash_client_unittest.js.
+
+namespace extensions {
+class StashClientTest : public ApiTestBase {
+ public:
+  StashClientTest() {}
+
+  void SetUp() override {
+    ApiTestBase::SetUp();
+    stash_backend_.reset(new StashBackend(base::Closure()));
+    PrepareEnvironment(api_test_env());
+  }
+
+  void PrepareEnvironment(ApiTestEnvironment* env) {
+    env->service_provider()->AddService(base::Bind(
+        &StashBackend::BindToRequest, base::Unretained(stash_backend_.get())));
+  }
+
+  scoped_ptr<StashBackend> stash_backend_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(StashClientTest);
+};
+
+// Test that stashing and restoring work correctly.
+TEST_F(StashClientTest, StashAndRestore) {
+  ASSERT_NO_FATAL_FAILURE(RunTest("stash_client_unittest.js", "testStash"));
+  env()->context()->DispatchOnUnloadEvent();
+  scoped_ptr<ModuleSystemTestEnvironment> restore_test_env(CreateEnvironment());
+  ApiTestEnvironment restore_environment(restore_test_env.get());
+  PrepareEnvironment(&restore_environment);
+  restore_environment.RunTest("stash_client_unittest.js", "testRetrieve");
+}
+
+}  // namespace extensions