[Texmap] Refactor code related to debug border and repaint count.
https://bugs.webkit.org/show_bug.cgi?id=105787

Patch by Huang Dongsung <luxtella@company100.net> on 2013-01-28
Reviewed by Noam Rosenthal.

It is a follow-up patch not to change layout test results.

The previous patch sets GraphicsLayer::m_usingTiledLayer to true when using a
backing store. When the variable is true, dumpLayer() adds (usingTiledLayer 1),
but most of ports don't set m_usingTiledLayer to true. So we don't use
m_usingTiledLayer to match the test results of other ports.

After this patch, Texture Mapper draws debug visuals for a tiled backing
with different color from safari.

No new tests. Debug feature, not covered in tests.

* platform/graphics/texmap/GraphicsLayerTextureMapper.cpp:
(WebCore::GraphicsLayerTextureMapper::updateDebugBorderAndRepaintCountIfNeeded):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141067 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[Qt] Build fix
https://bugs.webkit.org/show_bug.cgi?id=108142

Patch by Jae Hyun Park <jae.park@company100.net> on 2013-01-28
Reviewed by Gyuyoung Kim.

Build fix. Though StorageManager was added to WK2 in r141024,
it is not added to Target.pri for qt port.

* Target.pri:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141068 268f45cc-cd09-0410-ab3c-d52691b4dbfc