Fix to prevent unsorted breakpoints returning wrong spec

It orders the breakpoint list to guarantee that the smallest breakpoint is always returned for a given availableWidth or availableHeight.

Fix: 301396419
Flag: ENABLE_RESPONSIVE_WORKSPACE
Test: CalculatedWorkspaceSpecTest
Change-Id: Ia545e84150027bd8daa8d0dde58ff6fc579c3b6a
4 files changed