[EFL] Add a decoration image to search input field
https://bugs.webkit.org/show_bug.cgi?id=113552

Reviewed by Laszlo Gombos.

Source/WebCore:

Though EFL port has a decoration image for search input field, we didn't use it.
Start to show it.

Tests: fast/forms/search-cancel-button-style-sharing.html
       fast/forms/search-rtl.html
       fast/css/input-search-padding.html
       fast/css/text-input-with-webkit-border-radius.html
       fast/css/text-overflow-input.html
       fast/forms/box-shadow-override.html
       fast/forms/control-restrict-line-height.html
       fast/forms/input-appearance-height.html
       fast/forms/placeholder-position.html
       fast/forms/placeholder-pseudo-style.html
       fast/forms/search-styled.html
       fast/forms/search-vertical-alignment.html
       fast/forms/searchfield-heights.html
       fast/repaint/search-field-cancel.html
       fast/replaced/width100percent-searchfield.html

* platform/efl/RenderThemeEfl.cpp:
(WebCore):
(WebCore::RenderThemeEfl::supportsDataListUI):
(WebCore::RenderThemeEfl::adjustSearchFieldDecorationStyle):

LayoutTests:

Rebaseline related to input search field.

* platform/efl/fast/css/input-search-padding-expected.png:
* platform/efl/fast/css/input-search-padding-expected.txt:
* platform/efl/fast/css/text-input-with-webkit-border-radius-expected.png:
* platform/efl/fast/css/text-input-with-webkit-border-radius-expected.txt:
* platform/efl/fast/css/text-overflow-input-expected.png:
* platform/efl/fast/css/text-overflow-input-expected.txt:
* platform/efl/fast/forms/box-shadow-override-expected.png:
* platform/efl/fast/forms/box-shadow-override-expected.txt:
* platform/efl/fast/forms/control-restrict-line-height-expected.png:
* platform/efl/fast/forms/control-restrict-line-height-expected.txt:
* platform/efl/fast/forms/input-appearance-height-expected.png:
* platform/efl/fast/forms/input-appearance-height-expected.txt:
* platform/efl/fast/forms/placeholder-position-expected.png:
* platform/efl/fast/forms/placeholder-position-expected.txt:
* platform/efl/fast/forms/placeholder-pseudo-style-expected.png:
* platform/efl/fast/forms/placeholder-pseudo-style-expected.txt:
* platform/efl/fast/forms/search-cancel-button-style-sharing-expected.png:
* platform/efl/fast/forms/search-cancel-button-style-sharing-expected.txt:
* platform/efl/fast/forms/searchfield-heights-expected.png:
* platform/efl/fast/forms/searchfield-heights-expected.txt:
* platform/efl/fast/repaint/search-field-cancel-expected.png:
* platform/efl/fast/repaint/search-field-cancel-expected.txt:
* platform/efl/fast/replaced/width100percent-searchfield-expected.png:
* platform/efl/fast/replaced/width100percent-searchfield-expected.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147607 268f45cc-cd09-0410-ab3c-d52691b4dbfc