Add explicit protected constructor to Timeline.
Timeline is already abstract, so it can only be constructed from a subclass anyway. PiperOrigin-RevId: 389827960
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@ -983,6 +983,8 @@ public abstract class Timeline implements Bundleable {
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}
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}
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};
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};
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protected Timeline() {}
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/** Returns whether the timeline is empty. */
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/** Returns whether the timeline is empty. */
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public final boolean isEmpty() {
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public final boolean isEmpty() {
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return getWindowCount() == 0;
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return getWindowCount() == 0;
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