[cros] Proper handling of SIM codes input for all layouts. Added missing getInstance().
[cros] Proper handling of SIM codes input for all layouts.
Added missing getInstance().

Character filtering could be done using keypress event but it is deprecated. Using textInput event also handles pasting text into input field.
http://www.w3.org/TR/DOM-Level-3-Events/#event-type-textinput

BUG=chromium-os:19937
TEST=Manual. Input PIN code in FR layout.

Review URL: http://codereview.chromium.org/8142027

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@104267 0039d316-1c4b-4281-b951-d872f2087c98

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