Expose Blimp dependencies to the embedder

blimp/client/feature/compositor/mock_compositor_dependencies.h

+// 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.
+
+#ifndef BLIMP_CLIENT_FEATURE_COMPOSITOR_MOCK_COMPOSITOR_DEPENDENCIES_H_
+#define BLIMP_CLIENT_FEATURE_COMPOSITOR_MOCK_COMPOSITOR_DEPENDENCIES_H_
+
+#include "blimp/client/support/compositor/compositor_dependencies_impl.h"
+
+namespace blimp {
+namespace client {
+
+class MockCompositorDependencies : public CompositorDependenciesImpl {
+ public:
+  MockCompositorDependencies() = default;
+  ~MockCompositorDependencies() override = default;
+
+  // CompositorDependenciesImpl implementation.
+  void GetContextProvider(const ContextProviderCallback& callback) override;
+};
+
+}  // namespace client
+}  // namespace blimp
+
+#endif  // BLIMP_CLIENT_FEATURE_COMPOSITOR_MOCK_COMPOSITOR_DEPENDENCIES_H_