WidgetTray improvement

UI
- Fixing the issue of widget row not rendering
- Moved the resetting of previous bitmap to the start of onBind
instead of the onDetachedWindow.

Performance
- WidgetModel do not have to keep packageName list around.

Will com in immediate follow up CLs
- use lowRes widgets bitmap before fully loading the fullRes one.
- application icons are fully loaded in background thread.

b/19897708

Change-Id: I5b3b43a5c543a5135c395f90df32e66d57dc86e0
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 3d2a346..42e145b 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -132,7 +132,7 @@
         implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks,
                    View.OnTouchListener, PageSwitchListener, LauncherProviderChangeListener,
                    LauncherStateTransitionAnimation.Callbacks {
-    static final String TAG = "Launcher - MERONG";
+    static final String TAG = "Launcher";
     static final boolean LOGD = true;
 
     static final boolean PROFILE_STARTUP = false;