[Webkit-unassigned] [Bug 66135] CSSMutableStyleDeclaration should not add a property if there is already a existing same property

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=66135





--- Comment #5 from Johnny(Jianning) Ding <jnd at chromium.org>  2011-08-16 03:29:13 PST ---
Created an attachment (id=104019)
 --> (https://bugs.webkit.org/attachment.cgi?id=104019&action=review)
patch candidate

patch for pre-review since I haven't written test for it.  (I don't know what should we test for this CL as well).

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