Refactor YogaNode.Inputs freeze API

Summary:
`InternalNode` will eventually not have a pointer to its parent. This diff removes one of the usages of the `InternalNode#getParent()` API. `InternalNode` will also not host the `YogaNode` eventually; so this diff also removes one of the usages of the `InternalNode#getYogaNode()` api.

Now the `Inputs#freeze` api will pass the parent's `YogaNode` and the `YogaNode` of the node (this) being measured.

Changelog: [Internal] Passes The YogaNode and parent YogaNode in the Inputs.freeze API

Reviewed By: SidharthGuglani

Differential Revision: D27240229

fbshipit-source-id: efc4ec3249a963c3181111f9b989d8ed9e17feb4

ReactAndroid/src/main/java/com/facebook/yoga/YogaNode.java

@@ -15,7 +15,7 @@ public abstract class YogaNode implements YogaProps {
   public interface Inputs {
 
     /** Requests the data object to disable mutations of its inputs. */
-    void freeze();
+    void freeze(final YogaNode node, final @Nullable YogaNode parent);
   }
 
   public abstract void reset();

ReactAndroid/src/main/java/com/facebook/yoga/YogaNodeJNIBase.java

@@ -197,15 +197,16 @@ public void calculateLayout(float width, float height) {
     long[] nativePointers = null;
     YogaNodeJNIBase[] nodes = null;
 
-    freeze();
+    freeze(null);
 
     ArrayList<YogaNodeJNIBase> n = new ArrayList<>();
     n.add(this);
     for (int i = 0; i < n.size(); ++i) {
-      List<YogaNodeJNIBase> children = n.get(i).mChildren;
+      final YogaNodeJNIBase parent = n.get(i);
+      List<YogaNodeJNIBase> children = parent.mChildren;
       if (children != null) {
         for (YogaNodeJNIBase child : children) {
-          child.freeze();
+          child.freeze(parent);
           n.add(child);
         }
       }
@@ -220,10 +221,10 @@ public void calculateLayout(float width, float height) {
     YogaNative.jni_YGNodeCalculateLayoutJNI(mNativePointer, width, height, nativePointers, nodes);
   }
 
-  private void freeze() {
+  private void freeze(YogaNode parent) {
     Object data = getData();
     if (data instanceof Inputs) {
-      ((Inputs) data).freeze();
+      ((Inputs) data).freeze(this, parent);
     }
   }