Fix import statements in android.widget package.

Additionally this CL removes spaces at the end of the line.

Test: code still compiles.
Change-Id: I1ce98b4e70aa3ae614f87966c3bc6181fa4389a4
diff --git a/core/java/android/widget/Chronometer.java b/core/java/android/widget/Chronometer.java
index adcb012..b9224f3 100644
--- a/core/java/android/widget/Chronometer.java
+++ b/core/java/android/widget/Chronometer.java
@@ -24,7 +24,6 @@
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
-import android.view.accessibility.AccessibilityEvent;
 import android.widget.RemoteViews.RemoteView;
 
 import com.android.internal.R;
@@ -80,7 +79,7 @@
     private OnChronometerTickListener mOnChronometerTickListener;
     private StringBuilder mRecycle = new StringBuilder(8);
     private boolean mCountDown;
-    
+
     /**
      * Initialize this Chronometer object.
      * Sets the base to the current time.
@@ -191,7 +190,7 @@
 
     /**
      * Sets the listener to be called when the chronometer changes.
-     * 
+     *
      * @param listener The listener.
      */
     public void setOnChronometerTickListener(OnChronometerTickListener listener) {
@@ -209,10 +208,10 @@
     /**
      * Start counting up.  This does not affect the base as set from {@link #setBase}, just
      * the view display.
-     * 
-     * Chronometer works by regularly scheduling messages to the handler, even when the 
-     * Widget is not visible.  To make sure resource leaks do not occur, the user should 
-     * make sure that each start() call has a reciprocal call to {@link #stop}. 
+     *
+     * Chronometer works by regularly scheduling messages to the handler, even when the
+     * Widget is not visible.  To make sure resource leaks do not occur, the user should
+     * make sure that each start() call has a reciprocal call to {@link #stop}.
      */
     public void start() {
         mStarted = true;
@@ -222,9 +221,9 @@
     /**
      * Stop counting up.  This does not affect the base as set from {@link #setBase}, just
      * the view display.
-     * 
+     *
      * This stops the messages to the handler, effectively releasing resources that would
-     * be held as the chronometer is running, via {@link #start}. 
+     * be held as the chronometer is running, via {@link #start}.
      */
     public void stop() {
         mStarted = false;