Merge "Enable only clickable section header elements a11y" into tm-dev

    android:layout_height="@dimen/notification_section_header_height"

    android:paddingStart="4dp"

    android:paddingEnd="4dp"

    android:focusable="true"

    android:clickable="true"

    >

    <LinearLayout

                android:id="@+id/header_label"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:focusable="true"

                android:forceHasOverlappingRendering="false"

                android:text="@string/notification_section_header_gentle"

            />

            android:layout_height="48dp"

            android:src="@drawable/status_bar_notification_section_header_clear_btn"

            android:contentDescription="@string/accessibility_notification_section_header_gentle_clear_all"

            android:focusable="true"

            android:scaleType="center"

            android:tintMode="src_in"

            android:visibility="gone"