ExtensionDelegate to abstract extension implementation

athena/extensions/test/test_extensions_delegate.cc

Index: athena/extensions/test/test_extensions_delegate.cc
diff --git a/athena/extensions/test/test_extensions_delegate.cc b/athena/extensions/test/test_extensions_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..cac6a007eae5c0b3c50dcad6e8e0d54bc6e54705
--- /dev/null
+++ b/athena/extensions/test/test_extensions_delegate.cc
@@ -0,0 +1,40 @@
+// 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.
+
+#include "athena/extensions/public/extensions_delegate.h"
+#include "base/macros.h"
+#include "extensions/common/extension_set.h"
+
+namespace athena {
+namespace {
+
+class TestExtensionsDelegate : public ExtensionsDelegate {
+ public:
+  TestExtensionsDelegate() {}
+
+  virtual ~TestExtensionsDelegate() {}
+
+ private:
+  // ExtensionsDelegate:
+  virtual content::BrowserContext* GetBrowserContext() const OVERRIDE {
+    return NULL;
+  }
+  virtual const extensions::ExtensionSet& GetInstalledExtensions() OVERRIDE {
+    return shell_extensions_;
+  }
+  virtual void LaunchApp(const std::string& app_id) OVERRIDE {}
+
+  extensions::ExtensionSet shell_extensions_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestExtensionsDelegate);
+};
+
+}  // namespace
+
+// static
+void ExtensionsDelegate::CreateExtensionsDelegateForTest() {
+  new TestExtensionsDelegate();
+}
+
+}  // namespace athena