Code review comment for lp://staging/~brandontschaefer/unity/lp.1131646-fix

Nice work, overall it looks fine, just few things:

143 - if (detail_selection_index >= (unsigned int) 1)
232 + return (detail_selection_index > 0);

doesn't compile on raring g++... Probably we should wait a little.

478 + std::vector<LayoutWindow::Vector> rows = GetRows(windows, max_bounds);
235 +void SwitcherModel::SetRowSizes(std::vector<int> row_sizes)

Use const& please.

174 + for (unsigned int i = 0; i <= n; i++)

++i is nicer. Also you should make sure that n is < row_sizes_.size().