Snap for 4748783 from 94ef39116a to qt-release

Change-Id: I5bc657229d9fdd8df5041707a9ad3b49f650ce0a

src/com/android/launcher3/WidgetPreviewLoader.java

@@ -338,7 +338,8 @@ public class WidgetPreviewLoader {
         int previewWidth;
         int previewHeight;
 
-        if (widgetPreviewExists) {
+        if (widgetPreviewExists && drawable.getIntrinsicWidth() > 0
+                && drawable.getIntrinsicHeight() > 0) {
             previewWidth = drawable.getIntrinsicWidth();
             previewHeight = drawable.getIntrinsicHeight();
         } else {
@@ -358,8 +359,8 @@ public class WidgetPreviewLoader {
             scale = maxPreviewWidth / (float) (previewWidth);
         }
         if (scale != 1f) {
-            previewWidth = (int) (scale * previewWidth);
-            previewHeight = (int) (scale * previewHeight);
+            previewWidth = Math.max((int)(scale * previewWidth), 1);
+            previewHeight = Math.max((int)(scale * previewHeight), 1);
         }
 
         // If a bitmap is passed in, we use it; otherwise, we create a bitmap of the right size