Add hittest mode for Touch-action which ignore inline elements and svg elements

Source/core/rendering/svg/RenderSVGRoot.cpp

Index: Source/core/rendering/svg/RenderSVGRoot.cpp
diff --git a/Source/core/rendering/svg/RenderSVGRoot.cpp b/Source/core/rendering/svg/RenderSVGRoot.cpp
old mode 100644
new mode 100755
index bf09427ab301fbc2fb1500fd7e650c7544af74d7..023078abd64ac471539b833eaa2a48fdb23717b1
--- a/Source/core/rendering/svg/RenderSVGRoot.cpp
+++ b/Source/core/rendering/svg/RenderSVGRoot.cpp
@@ -398,7 +398,7 @@ bool RenderSVGRoot::nodeAtPoint(const HitTestRequest& request, HitTestResult& re
 
     // Only test SVG content if the point is in our content box.
     // FIXME: This should be an intersection when rect-based hit tests are supported by nodeAtFloatPoint.
-    if (contentBoxRect().contains(pointInBorderBox)) {
+    if (!request.touchAction() && contentBoxRect().contains(pointInBorderBox)) {

[Rick Byers, 2014/01/17 16:12:46]

RenderSVGRoot is a RenderBox so whatever we decide for RenderBox will probably
handle the SVG case.  The individual SVG elements are all RenderSVGModelObject
(not a RenderBox) so won't get touch-action hit testing applied to them if we
opt-in in RenderBox/RenderBlock.

[gnana, 2014/01/21 14:00:16]

commented reply below

         FloatPoint localPoint = localToParentTransform().inverse().mapPoint(FloatPoint(pointInParent));
 
         for (RenderObject* child = lastChild(); child; child = child->previousSibling()) {