Should be able to scroll text in <input> fields with touch

Source/core/rendering/RenderLayer.cpp

Index: Source/core/rendering/RenderLayer.cpp
diff --git a/Source/core/rendering/RenderLayer.cpp b/Source/core/rendering/RenderLayer.cpp
index 17edf636a3a2c9e7116f6987e2195b220b1c5311..56f41cd8414b155651e567c4e0a50106ad2d09d0 100644
--- a/Source/core/rendering/RenderLayer.cpp
+++ b/Source/core/rendering/RenderLayer.cpp
@@ -3116,7 +3116,8 @@ void RenderLayer::computeScrollDimensions()
 
 bool RenderLayer::hasScrollableHorizontalOverflow() const
 {
-    return hasHorizontalOverflow() && renderBox()->scrollsOverflowX();
+    return hasHorizontalOverflow()
+        && (renderBox()->scrollsOverflowX() || renderBox()->isScrollableWithoutScrollbars());
 }
 
 bool RenderLayer::hasScrollableVerticalOverflow() const
@@ -3473,6 +3474,10 @@ bool RenderLayer::hitTestOverflowControls(HitTestResult& result, const IntPoint&
 
 bool RenderLayer::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier)
 {
+    // Some elements can be touch scrolled even in the absence of scrollbars (e.g. <input> textfield)
+    if (renderBox()->isScrollableWithoutScrollbars())
+        return touchScroll(direction, granularity, multiplier);

[bokan, 2013/05/30 18:23:51]

Moved this call into RenderTextControlSingleLine::scroll

+
     return ScrollableArea::scroll(direction, granularity, multiplier);
 }