[patch][cla]mobile Rating widget has rendering problems under some scenarios with position:relative ancestor

[Chris Mitchell]

The mobile Rating widget has rendering problems under some scenarios with position:relative ancestor elements. This problem is with the css clip() function used in dojox/mobile/iconUtils.js. CSS clip requires that the elements be position:absolute. Nothing in the Rating component ensures that this is the case, so users may unknowingly add the Rating widget into a parent node that inherits position:relative from one of its ancestors. A patched version of iconUtils.js from trunk is attached. added L33: position: "absolute" added L173: position: "relative"

[Chris Mitchell]

In [30872]:

fixes #16854 !strict