input/gia/aidl/compatibility_matrix.xml

<compatibility-matrix type="framework" version="1.0">
    <hal format="aidl" optional="true">
        <name>com.google.input.gia.core</name>
        <interface>
            <name>IGiaService</name>
            <instance>default</instance>
        </interface>
        <version>1</version>
    </hal>
</compatibility-matrix>