Remove HardwareCanvas

Change-Id: I239646a7f00f09d3f76fe6b6162eed86bc0d6e77
diff --git a/core/java/android/view/ThreadedRenderer.java b/core/java/android/view/ThreadedRenderer.java
index 69b4c47..0ee3b6a 100644
--- a/core/java/android/view/ThreadedRenderer.java
+++ b/core/java/android/view/ThreadedRenderer.java
@@ -282,7 +282,7 @@
         updateViewTreeDisplayList(view);
 
         if (mRootNodeNeedsUpdate || !mRootNode.isValid()) {
-            HardwareCanvas canvas = mRootNode.start(mSurfaceWidth, mSurfaceHeight);
+            DisplayListCanvas canvas = mRootNode.start(mSurfaceWidth, mSurfaceHeight);
             try {
                 final int saveCount = canvas.save();
                 canvas.translate(mInsetLeft, mInsetTop);