Tweak the sourceUrl decision tree a bit, and update
the comments on when this should be used.

R=ssaviano
DELTA=32 (15 added, 5 deleted, 12 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=6113


git-svn-id: http://closure-library.googlecode.com/svn/trunk@2429 0b95b8e8-c90f-11de-9d4f-f947ee5921c8

Set type="text" for the <input> element in goog.ui.ComboBox.
My use case is to be able to easily customize the style of all text inputs without modifying other input controls such as radio buttons. If the text attribute is not set, the CSS styles set in input[type=text] selectors are not applied.

R=chrishenry,nnaze
DELTA=12 (11 added, 0 deleted, 1 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=6114


git-svn-id: http://closure-library.googlecode.com/svn/trunk@2430 0b95b8e8-c90f-11de-9d4f-f947ee5921c8