fix a couple bugs in sidenav for samples. Previously, clicking a link still invoked the expand collapse behavior. Previously, collapsing a parent item did not also collapse its children.
fix a couple bugs in sidenav for samples.
Previously, clicking a link still invoked the expand collapse behavior.
Previously, collapsing a parent item did not also collapse its children.

Change-Id: Iac0b9208bfbab79e9715850f9a192c22250d0673

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build