Take panel count into account for page indicator size

Test: on a device with 2 panels, workspace page indicator width reflects number of needed scrolls rather than number of pages.
Fixes: 200607741
Change-Id: Ic2d0bdc644a15944c2d69a832068889071dc25e2
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index a7198a8..d534c5d 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -208,7 +208,7 @@
     public void initParentViews(View parent) {
         if (mPageIndicatorViewId > -1) {
             mPageIndicator = parent.findViewById(mPageIndicatorViewId);
-            mPageIndicator.setMarkersCount(getChildCount());
+            mPageIndicator.setMarkersCount(getChildCount() / getPanelCount());
         }
     }
 
@@ -830,7 +830,7 @@
 
     private void dispatchPageCountChanged() {
         if (mPageIndicator != null) {
-            mPageIndicator.setMarkersCount(getChildCount());
+            mPageIndicator.setMarkersCount(getChildCount() / getPanelCount());
         }
         // This ensures that when children are added, they get the correct transforms / alphas
         // in accordance with any scroll effects.