https://bugs.webkit.org/show_bug.cgi?id=109885

Patch by Huang Dongsung <luxtella@company100.net> on 2013-02-14
Reviewed by Simon Fraser.

Chrome sends a scroll delta to WebChromeClient but WebChromeClient names it
scrollOffset. So this patch corrects this misnaming.

In addition, all subclasses of LayerTreeHost don't use the misnamed
scrollOffset in scrollNonCompositedContents(), so this patch removes the
scrollOffset argument.

* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::scroll):
* WebProcess/WebCoreSupport/WebChromeClient.h:
(WebChromeClient):
* WebProcess/WebPage/CoordinatedGraphics/CoordinatedLayerTreeHost.cpp:
(WebKit::CoordinatedLayerTreeHost::scrollNonCompositedContents):
* WebProcess/WebPage/CoordinatedGraphics/CoordinatedLayerTreeHost.h:
(CoordinatedLayerTreeHost):
* WebProcess/WebPage/DrawingArea.h:
(DrawingArea):
* WebProcess/WebPage/DrawingAreaImpl.cpp:
(WebKit::DrawingAreaImpl::scroll):
* WebProcess/WebPage/DrawingAreaImpl.h:
(DrawingAreaImpl):
* WebProcess/WebPage/LayerTreeHost.h:
(LayerTreeHost):
* WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:
(WebKit::LayerTreeHostGtk::scrollNonCompositedContents):
* WebProcess/WebPage/gtk/LayerTreeHostGtk.h:
(LayerTreeHostGtk):
* WebProcess/WebPage/mac/LayerTreeHostMac.h:
(LayerTreeHostMac):
* WebProcess/WebPage/mac/LayerTreeHostMac.mm:
(WebKit::LayerTreeHostMac::scrollNonCompositedContents):
* WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.h:
(RemoteLayerTreeDrawingArea):
* WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm:
(WebKit::RemoteLayerTreeDrawingArea::scroll):
* WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.h:
(TiledCoreAnimationDrawingArea):
* WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:
(WebKit::TiledCoreAnimationDrawingArea::scroll):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142968 268f45cc-cd09-0410-ab3c-d52691b4dbfc