Swiping from Overview to All Apps from apps_view

Used to swipe from an app icon, but in the lab, there were icons at
weird positions.

Change-Id: I271dd800f1b714997282512eb64ebc5d34b24f13

tests/tapl/com/android/launcher3/tapl/Overview.java

@@ -51,10 +51,9 @@ public final class Overview extends BaseOverview {
 
             // Swipe from an app icon to the top.
             LauncherInstrumentation.log("Overview.switchToAllApps before swipe");
-            final UiObject2 appIcon = mLauncher.waitForLauncherObjectByClass(
-                    "android.widget.TextView");
+            final UiObject2 allApps = mLauncher.waitForLauncherObject("apps_view");
             mLauncher.swipeToState(mLauncher.getDevice().getDisplayWidth() / 2,
-                    appIcon.getVisibleBounds().centerY(),
+                    allApps.getVisibleBounds().top,
                     mLauncher.getDevice().getDisplayWidth() / 2,
                     0, 50, ALL_APPS_STATE_ORDINAL);