Landscape container padding update.

b/30021487

Change-Id: I179825eba09f3c4c57175e8f6da49708dae1931c
(cherry picked from commit 9d96fd5790)

src/com/android/launcher3/DeviceProfile.java

@@ -589,9 +589,9 @@ public class DeviceProfile {
             return new int[] {0, 0};
         }
 
-        // In landscape, we just match the vertical display width
-        int containerWidth = heightPx;
-        int padding = (availableWidthPx - containerWidth) / 2;
+        // In landscape, we match the width of the workspace
+        int padding = (pageIndicatorLandGutterRightNavBarPx +
+                hotseatBarHeightPx + hotseatLandGutterPx + mInsets.left) / 2;
         return new int[]{ padding, padding };
     }
 }