Making page indicator an abstract class and implementing some common methods.

Change-Id: I06613428c54f1f086090580db8242cf81f7fb128
diff --git a/src/com/android/launcher3/PinchAnimationManager.java b/src/com/android/launcher3/PinchAnimationManager.java
index 477b92c..c8c8fa4 100644
--- a/src/com/android/launcher3/PinchAnimationManager.java
+++ b/src/com/android/launcher3/PinchAnimationManager.java
@@ -194,7 +194,7 @@
         animateShowHideView(INDEX_HOTSEAT, mLauncher.getHotseat(), show);
         if (mWorkspace.getPageIndicator() != null) {
             // There aren't page indicators in landscape mode on phones, hence the null check.
-            animateShowHideView(INDEX_PAGE_INDICATOR, mWorkspace.getPageIndicator().getView(), show);
+            animateShowHideView(INDEX_PAGE_INDICATOR, mWorkspace.getPageIndicator(), show);
         }
     }