Fix 2404771: Reset SlidingTab widget when we get an incoming call.

Tested on two WVGA devices (CDMA w/keyboard & GSM):
- incoming call while at homescreen in portrait & landscape modes
- incoming call while in dock
- incoming call while runnint camera app
- incoming call while keyboard open
diff --git a/src/com/android/phone/InCallTouchUi.java b/src/com/android/phone/InCallTouchUi.java
index 0359b22..61f2755 100644
--- a/src/com/android/phone/InCallTouchUi.java
+++ b/src/com/android/phone/InCallTouchUi.java
@@ -146,7 +146,7 @@
                 com.android.internal.R.drawable.jog_tab_right_decline
                 );
 
-        // For now, we only need to show two states: answer and decline. 
+        // For now, we only need to show two states: answer and decline.
         mIncomingCallWidget.setLeftHintText(R.string.slide_to_answer_hint);
         mIncomingCallWidget.setRightHintText(R.string.slide_to_decline_hint);
 
@@ -595,6 +595,7 @@
             anim.reset();
             mIncomingCallWidget.clearAnimation();
         }
+        mIncomingCallWidget.reset(false);
         mIncomingCallWidget.setVisibility(View.VISIBLE);
     }