Update touch-action hit-testing to match latest spec changes.

Source/core/page/EventHandler.cpp

Index: Source/core/page/EventHandler.cpp
diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp
index 0c406ddee3166c9a5d611f06c026ebc34d32ec4e..c94c053803e3616122665b700c4e104f79c7a8c1 100644
--- a/Source/core/page/EventHandler.cpp
+++ b/Source/core/page/EventHandler.cpp
@@ -3940,16 +3940,14 @@ TouchAction EventHandler::computeEffectiveTouchAction(const LayoutPoint& point)
     if (!node)
         return TouchActionAuto;
 
-    // Start by permitting all actions, then walk the block level elements from
-    // the target node up to the nearest scrollable ancestor and exclude any
+    // Start by permitting all actions, then walk the box elements from the
+    // target node up to the nearest scrollable ancestor and exclude any
     // prohibited actions. For now this is trivial, but when we add more types
     // of actions it'll get a little more complex.
     TouchAction effectiveTouchAction = TouchActionAuto;
     for (const Node* curNode = node; curNode; curNode = NodeRenderingTraversal::parent(curNode)) {
-        // The spec says only block and SVG elements get touch-action.
-        // FIXME(rbyers): Add correct support for SVG, crbug.com/247396.
         if (RenderObject* renderer = curNode->renderer()) {
-            if (renderer->isRenderBlockFlow()) {
+            if (renderer->isBox()) {

[Rick Byers, 2014/04/02 20:25:20]

this should again look only at nodes to which touch action applies - probably
use visibleForTouchAction again here.

[Zeeshan Qureshi, 2014/04/04 01:12:31]

Done, the row / column case test this and I verified that it was failing
previously.

                 TouchAction action = renderer->style()->touchAction();
                 effectiveTouchAction = intersectTouchAction(action, effectiveTouchAction);
                 if (effectiveTouchAction == TouchActionNone)