[Qt] QtWebKit (using the Arora browser) displays the border radii (radius) of a button very ugly

https://bugs.webkit.org/show_bug.cgi?id=28113

Reviewed by Jocelyn Turcotte.

StylePainter::init() was called twice making it clobber the previous antialiasing setting.

This patch cleans up the construction so we only have one constructor with init inlined.

* platform/qt/RenderThemeQStyle.cpp:
(WebCore::StylePainterQStyle::StylePainterQStyle):
(WebCore::StylePainterQStyle::setupStyleOption):
* platform/qt/RenderThemeQStyle.h:
* platform/qt/RenderThemeQt.cpp:
(WebCore::StylePainter::StylePainter):
* platform/qt/RenderThemeQt.h:
* platform/qt/RenderThemeQtMobile.cpp:
(WebCore::StylePainterMobile::StylePainterMobile):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154270 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Task-number: QTWEBKIt-355
Change-Id: I5f9e50ccc3deeb1ac1c1714c010d766f4ea29908
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>
[Qt] memory leak in WebCore::FontCache::getLastResortFallbackFont

https://bugs.webkit.org/show_bug.cgi?id=118532

Reviewed by Jocelyn Turcotte.

We don't need to allocate FontPlatformData on the heap
since getCachedFontData makes a deep copy anyway.

* platform/graphics/qt/FontCacheQt.cpp:
(WebCore::FontCache::getLastResortFallbackFont):

Change-Id: I02e974e53f36dd01a4b43a21cc98651913c0d515
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154103 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>