Fix MaterialGraph to match updated Unity changes

Signed-off-by: joce <joce@unity3d.com>

MaterialGraphProject/Assets/NewUI/Editor/Elements/NodeAnchor.cs

 
 			string anchorName = string.IsNullOrEmpty(anchorPresenter.name) ? anchorType.Name : anchorPresenter.name;
 			m_ConnectorText.content.text = anchorName;
+
 			anchorPresenter.capabilities &= ~Capabilities.Selectable;
 		}
 

MaterialGraphProject/Assets/NewUI/Editor/Manipulators/ContentDragger.cs

 					break;
 
 				case EventType.MouseDrag:
-					if (this.HasCapture() && graphView.contentViewContainer.positionType == PositionType.Absolute)
+					if (this.HasCapture())
 					{
 						Vector2 diff = graphView.ChangeCoordinatesTo(graphView.contentViewContainer, evt.mousePosition) - m_Start;
 						Matrix4x4 t = graphView.contentViewContainer.transform;

MaterialGraphProject/Assets/NewUI/Editor/Manipulators/Resizer.cs

 						m_Start = this.ChangeCoordinatesTo(parent,evt.mousePosition);
 						m_StartPos = parent.position;
 						// Warn user if target uses a relative CSS position type
-						if (parent.positionType != PositionType.Absolute)
+						if (parent.positionType != PositionType.Manual)
-							Debug.LogWarning("Attempting to resize an object with a non absolute CSS position type");
+							Debug.LogWarning("Attempting to resize an object with a non manual position");
 						}
 						this.TakeCapture();
 						return EventPropagation.Stop;
 				case EventType.MouseDrag:
-					if (this.HasCapture() && parent.positionType == PositionType.Absolute)
+					if (this.HasCapture() && parent.positionType == PositionType.Manual)
 					{
 						Vector2 diff = this.ChangeCoordinatesTo(parent,evt.mousePosition) - m_Start;
 						var newSize = new Vector2(m_StartPos.width + diff.x, m_StartPos.height + diff.y);

MaterialGraphProject/Assets/NewUI/Editor/Views/GraphView.cs

 			{
 				name = "contentViewContainer",
 				clipChildren = false,
-				position = new Rect(0, 0, 0, 0)
+				pickingMode = PickingMode.Ignore
 			};
 
 			// make it absolute and 0 sized so it acts as a transform to move children to and fro
 		{
 			// Reset container translation, scale and position
 			contentViewContainer.transform = Matrix4x4.identity;
-			contentViewContainer.position = Rect.zero;
+			// TODO remove once we clarify Touch()
+			contentViewContainer.Touch(ChangeType.Repaint);
 
 			if (frameType == FrameType.Origin)
 			{

MaterialGraphProject/Assets/NewUI/Editor/Views/GraphView.uss

 }
 
 .node.horizontal > #pane {
-	flex:1;
-
 	align-items: stretch;
 	border-left: 4;
 	border-top: 4;
 
 .node NodeAnchor #type {
 	text-color: rgb(153, 153, 153);
+}
+
+.node.vertical NodeAnchor #type {
 	flex:1;
 }
 

MaterialGraphProject/ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 5.6.0a2
+m_EditorVersion: 5.6.0a5