Do a full touch dispach when proxying touch

> Workspace can no longer be scrolled when swipin on hotseat

Bug: 130027168
Change-Id: Ie4621e5b7de8d7248227b25fb065249d0c252090
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index cbd3fc0..4da7907 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -20,6 +20,7 @@
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.Gravity;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewDebug;
 import android.view.ViewGroup;
@@ -98,4 +99,10 @@
         setLayoutParams(lp);
         InsettableFrameLayout.dispatchInsets(this, insets);
     }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        // Don't let if follow through to workspace
+        return true;
+    }
 }