This broke lots of layout tests on OSX.

This broke lots of layout tests on OSX.

See this link for the failure list:
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#group=@ToT - chromium.org&tests=fast/dom/HTMLTextAreaElement/reset-textarea.html,fast/dom/isindex-001.html,fast/dom/isindex-002.html,fast/forms/blankbuttons.html,fast/forms/box-shadow-override.html,fast/forms/button-default-title.html,fast/forms/file-input-direction.html,fast/forms/hidden-input-file.html,fast/forms/input-appearance-height.html,fast/forms/input-file-re-render.html,fast/forms/input-first-letter.html,fast/forms/isindex-placeholder.html,fast/forms/text-style-color.html,fast/forms/validation-message-appearance.html,fast/html/details-no-summary1.html,fast/html/details-no-summary2.html,fast/html/details-no-summary3.html,fast/html/details-no-summary4.html,fast/html/details-remove-summary-1-and-click.html,fast/html/details-remove-summary-1.html,fast/html/details-remove-summary-4-and-click.html,fast/html/details-remove-summary-4.html,fast/html/keygen.html,tables/mozilla/bugs/bug39209.html,tables/mozilla/bugs/bug4429.html,fast/forms/005.html,fast/forms/input-file-label.html,fast/invalid/residual-style.html,fast/parser/fragment-parser.html,fast/replaced/table-percent-height-text-controls.html,html5lib/runner.html,http/tests/misc/isindex-with-no-form-base-href.html,http/tests/misc/isindex-with-no-form.html

Revert 101213 - Updated *.pak file format to support both UTF8 and UTF16

Inserted a new field in the header that specifies which encoding is to be used for the text resources.

I also upped file format to version 4.

BUG=76281
TEST=unit_tests


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=100973

Review URL: http://codereview.chromium.org/7744017

TBR=adriansc@chromium.org
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=101224