* new function to automatically determine the right size font to fit
  some text within some specified bounds.

* The documentation for ComputeStringBounds said "This function does
  not take account of the text rotation".  This is incorrect; text
  rotation actually does impact the bounds returned by this function.
  This commit removes the false statement from the documentation for
  this function.

Change-Id: I864973c054ba1ab28bebac488a5c5844fa74e734