[autotests] tst_MacGui::scrollbarPainting fails.

tst_MacGui::scrollbarPainting fails consistently.

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03216/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/28/12 11:37:59 AM EST: Testing tst_MacGui
6/28/12 11:37:59 AM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/28/12 11:37:59 AM EST: Loc: [tst_macgui.cpp(102)]

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03217/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/28/12 1:35:36 PM EST: Testing tst_MacGui
6/28/12 1:35:36 PM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/28/12 1:35:36 PM EST: Loc: [tst_macgui.cpp(102)]

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03218/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/28/12 3:28:47 PM EST: Testing tst_MacGui
6/28/12 3:28:47 PM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/28/12 3:28:47 PM EST: Loc: [tst_macgui.cpp(102)]

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03219/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/28/12 8:05:49 PM EST: Testing tst_MacGui
6/28/12 8:05:49 PM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/28/12 8:05:49 PM EST: Loc: [tst_macgui.cpp(102)]

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03220/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/28/12 9:39:30 PM EST: Testing tst_MacGui
6/28/12 9:39:35 PM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/28/12 9:39:35 PM EST: Loc: [tst_macgui.cpp(102)]

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03221/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/29/12 12:07:01 AM EST: Testing tst_MacGui
6/29/12 12:07:01 AM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/29/12 12:07:01 AM EST: Loc: [tst_macgui.cpp(102)]

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03222/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/29/12 2:22:46 AM EST: Testing tst_MacGui
6/29/12 2:22:46 AM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/29/12 2:22:46 AM EST: Loc: [tst_macgui.cpp(102)]

http://testresults.qt-project.org/ci/QtBase_master_Integration/build_03223/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz :
6/29/12 9:37:14 AM EST: Testing tst_MacGui
6/29/12 9:37:14 AM EST: FAIL! : tst_MacGui::scrollbarPainting() 'isContent(pixmap.toImage(), verticalScrollbar.geometry(), GuiTester::Horizontal)' returned FALSE. ()
6/29/12 9:37:14 AM EST: Loc: [tst_macgui.cpp(102)]