Merge "[SF] Fix unittest crash"

            return *this;

        }

        auto& addCapability(HWC2::Capability cap) {

            mCapabilities.emplace(cap);

        auto& setCapabilities(const std::unordered_set<HWC2::Capability>* capabilities) {

            mCapabilities = capabilities;

            return *this;

        }

        void inject(TestableSurfaceFlinger* flinger, Hwc2::Composer* composer) {

            auto display = std::make_unique<HWC2Display>(*composer, mCapabilities, mHwcDisplayId,

            static const std::unordered_set<HWC2::Capability> defaultCapabilities;

            if (mCapabilities == nullptr) mCapabilities = &defaultCapabilities;

            // Caution - Make sure that any values passed by reference here do

            // not refer to an instance owned by FakeHwcDisplayInjector. This

            // class has temporary lifetime, while the constructed HWC2::Display

            // is much longer lived.

            auto display = std::make_unique<HWC2Display>(*composer, *mCapabilities, mHwcDisplayId,

                                                         mHwcDisplayType);

            auto config = HWC2::Display::Config::Builder(*display, mActiveConfig);

        int32_t mDpiX = DEFAULT_DPI;

        int32_t mDpiY = DEFAULT_DPI;

        int32_t mActiveConfig = DEFAULT_ACTIVE_CONFIG;

        std::unordered_set<HWC2::Capability> mCapabilities;

        const std::unordered_set<HWC2::Capability>* mCapabilities = nullptr;

    };

    class FakeDisplayDeviceInjector {