Fix weird page snap bug when long pressing on music controls (issue 11420449)

Change-Id: Ie789d74c03656b93f26b9afef16356862f1982a8
diff --git a/packages/Keyguard/src/com/android/keyguard/PagedView.java b/packages/Keyguard/src/com/android/keyguard/PagedView.java
index 9d237dc..d89971f 100644
--- a/packages/Keyguard/src/com/android/keyguard/PagedView.java
+++ b/packages/Keyguard/src/com/android/keyguard/PagedView.java
@@ -2260,11 +2260,11 @@
         mTempVisiblePagesRange[0] = 0;
         mTempVisiblePagesRange[1] = getPageCount() - 1;
         boundByReorderablePages(true, mTempVisiblePagesRange);
-        mReorderingStarted = true;
 
         // Check if we are within the reordering range
         if (mTempVisiblePagesRange[0] <= dragViewIndex &&
                 dragViewIndex <= mTempVisiblePagesRange[1]) {
+            mReorderingStarted = true;
             if (zoomOut()) {
                 // Find the drag view under the pointer
                 mDragView = getChildAt(dragViewIndex);