Svetoslav Ganov 3ca5a74c17 Make the URL for the JavaScript based screen-reader used by WebView configurable.
The URl from which to inject a screen-reader for WebView accessiblity support should be
configurable because: 1) The accessibility engineering team should be able to point
devices to a staging build of the screen-reader; 2) We would like to be able to change
this URL via the Google services mechanism.

bug:5718543

Change-Id: I3d4d343f1c93e0e0173f04b2912949fe8a3566b9
2011-12-07 14:35:59 -08:00
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