Landscape grid changes for Workspace/All Apps.

This is the just first CL to get eyes on the changes.
Next CL will update the All Apps to be full width.

Bug: 37015359
Change-Id: I2d7ec6851fdc13b8fa654e7e2be3152330243ccc
diff --git a/src/com/android/launcher3/WidgetPreviewLoader.java b/src/com/android/launcher3/WidgetPreviewLoader.java
index 7d6d184..ad1be7e 100644
--- a/src/com/android/launcher3/WidgetPreviewLoader.java
+++ b/src/com/android/launcher3/WidgetPreviewLoader.java
@@ -111,7 +111,7 @@
      * sizes (landscape vs portrait).
      */
     private static class CacheDb extends SQLiteCacheHelper {
-        private static final int DB_VERSION = 7;
+        private static final int DB_VERSION = 8;
 
         private static final String TABLE_NAME = "shortcut_and_widget_previews";
         private static final String COLUMN_COMPONENT = "componentName";