Move StopWatch class into common.

Bug: 6993891
Change-Id: I0137ea3a72e0ee1a75f9218fec471049abf36d97
diff --git a/src/com/android/dialer/dialpad/DialpadFragment.java b/src/com/android/dialer/dialpad/DialpadFragment.java
index 776b2c9..0d11ddc 100644
--- a/src/com/android/dialer/dialpad/DialpadFragment.java
+++ b/src/com/android/dialer/dialpad/DialpadFragment.java
@@ -70,7 +70,7 @@
 import com.android.contacts.common.CallUtil;
 import com.android.contacts.common.GeoUtil;
 import com.android.contacts.util.PhoneNumberFormatter;
-import com.android.contacts.util.StopWatch;
+import com.android.contacts.common.util.StopWatch;
 import com.android.dialer.DialtactsActivity;
 import com.android.dialer.R;
 import com.android.dialer.SpecialCharSequenceMgr;