Remove flaky ListManagedCursorTest tests, clean up lint warnings

Also removes trailing ws.

Bug: 23811652
Change-Id: I2ae5c954606e95bcb4cfe52297717d4caf444cd0
diff --git a/core/tests/coretests/src/android/widget/listview/ListManagedCursorTest.java b/core/tests/coretests/src/android/widget/listview/ListManagedCursorTest.java
index eb27bc5..bc3776c 100644
--- a/core/tests/coretests/src/android/widget/listview/ListManagedCursorTest.java
+++ b/core/tests/coretests/src/android/widget/listview/ListManagedCursorTest.java
@@ -17,11 +17,9 @@
 package android.widget.listview;
 
 import android.app.Instrumentation;
-import android.test.ActivityInstrumentationTestCase;
-import android.test.FlakyTest;
+import android.test.ActivityInstrumentationTestCase2;
 import android.test.suitebuilder.annotation.LargeTest;
 import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.Suppress;
 import android.view.KeyEvent;
 import android.widget.ListView;
 import android.test.TouchUtils;
@@ -29,12 +27,12 @@
 /**
  * Tests restoring the scroll position in a list with a managed cursor.
  */
-public class ListManagedCursorTest extends ActivityInstrumentationTestCase<ListManagedCursor> {
+public class ListManagedCursorTest extends ActivityInstrumentationTestCase2<ListManagedCursor> {
     private ListManagedCursor mActivity;
     private ListView mListView;
 
     public ListManagedCursorTest() {
-        super("com.android.frameworks.coretests", ListManagedCursor.class);
+        super(ListManagedCursor.class);
     }
 
     @Override
@@ -49,88 +47,46 @@
     public void testPreconditions() {
         assertNotNull(mActivity);
         assertNotNull(mListView);
-        
+
         assertEquals(0, mListView.getFirstVisiblePosition());
     }
-    
+
     /**
      * Scroll the list using arrows, launch new activity, hit back, make sure we're still scrolled.
      */
     @LargeTest
     public void testKeyScrolling() {
         Instrumentation inst = getInstrumentation();
-        
+
         int firstVisiblePosition = arrowScroll(inst);
-        
+
         inst.sendCharacterSync(KeyEvent.KEYCODE_BACK);
         inst.waitForIdleSync();
-        
-        assertTrue("List changed to touch mode", !mListView.isInTouchMode()); 
-        assertTrue("List did not preserve scroll position", 
-                firstVisiblePosition == mListView.getFirstVisiblePosition()); 
+
+        assertTrue("List changed to touch mode", !mListView.isInTouchMode());
+        assertTrue("List did not preserve scroll position",
+                firstVisiblePosition == mListView.getFirstVisiblePosition());
     }
 
     /**
-     * Scroll the list using touch, launch new activity, hit back, make sure we're still scrolled.
-     */
-    @LargeTest
-    @Suppress  // Flaky
-    public void testTouchScrolling() {
-        Instrumentation inst = getInstrumentation();
-        
-       int firstVisiblePosition = touchScroll(inst);
-        
-        inst.sendCharacterSync(KeyEvent.KEYCODE_BACK);
-        inst.waitForIdleSync();
-        
-        assertTrue("List not in touch mode", mListView.isInTouchMode()); 
-        assertTrue("List did not preserve scroll position", 
-                firstVisiblePosition == mListView.getFirstVisiblePosition()); 
-    }
-    
-    /**
      * Scroll the list using arrows, launch new activity, change to touch mode, hit back, make sure
      * we're still scrolled.
      */
     @LargeTest
     public void testKeyScrollingToTouchMode() {
         Instrumentation inst = getInstrumentation();
-        
+
         int firstVisiblePosition = arrowScroll(inst);
-        
-        TouchUtils.dragQuarterScreenUp(this);
+
+        TouchUtils.dragQuarterScreenUp(this, getActivity());
         inst.sendCharacterSync(KeyEvent.KEYCODE_BACK);
         inst.waitForIdleSync();
-        
-        assertTrue("List did not change to touch mode", mListView.isInTouchMode()); 
-        assertTrue("List did not preserve scroll position", 
-                firstVisiblePosition == mListView.getFirstVisiblePosition()); 
+
+        assertTrue("List did not change to touch mode", mListView.isInTouchMode());
+        assertTrue("List did not preserve scroll position",
+                firstVisiblePosition == mListView.getFirstVisiblePosition());
     }
 
-
-    /**
-     * Scroll the list using touch, launch new activity, change to trackball mode, hit back, make
-     * sure we're still scrolled.
-     */
-    @FlakyTest(tolerance=3)
-    @LargeTest
-    @Suppress  // Flaky
-    public void testTouchScrollingToTrackballMode() {
-        Instrumentation inst = getInstrumentation();
-
-        int firstVisiblePosition = touchScroll(inst);
-
-        inst.sendCharacterSync(KeyEvent.KEYCODE_DPAD_DOWN);
-        inst.waitForIdleSync();
-        inst.sendCharacterSync(KeyEvent.KEYCODE_DPAD_DOWN);
-        inst.waitForIdleSync();
-        inst.sendCharacterSync(KeyEvent.KEYCODE_BACK);
-        inst.waitForIdleSync();
-        assertTrue("List not in trackball mode", !mListView.isInTouchMode());
-        assertTrue("List did not preserve scroll position", firstVisiblePosition == mListView
-                .getFirstVisiblePosition());
-    }
-    
     public int arrowScroll(Instrumentation inst) {
         int count = mListView.getChildCount();
 
@@ -154,30 +110,4 @@
 
         return firstVisiblePosition;
     }
-
-    public int touchScroll(Instrumentation inst) {
-        TouchUtils.dragQuarterScreenUp(this);
-        inst.waitForIdleSync();
-        TouchUtils.dragQuarterScreenUp(this);
-        inst.waitForIdleSync();
-        TouchUtils.dragQuarterScreenUp(this);
-        inst.waitForIdleSync();
-        TouchUtils.dragQuarterScreenUp(this);
-        inst.waitForIdleSync();
-
-        int firstVisiblePosition = mListView.getFirstVisiblePosition();
-        assertTrue("Touch scroll did not happen", firstVisiblePosition > 0);
-        assertTrue("List not in touch mode", mListView.isInTouchMode());
-
-        TouchUtils.clickView(this, mListView.getChildAt(mListView.getChildCount() - 1));
-        inst.waitForIdleSync();
-
-        try {
-            Thread.sleep(3000);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
-
-        return firstVisiblePosition;
-    }
 }