Support precomposed app icons.

The precomposed icon overrides any other touch icon. We still need to do the
round rect clip because apparently apple still applies the rounded corners, just
not the glass effect. Inset the rectangle by 1 to fit the icons better.
diff --git a/src/com/android/browser/AddBookmarkPage.java b/src/com/android/browser/AddBookmarkPage.java
index a54a59a..2a92dce 100644
--- a/src/com/android/browser/AddBookmarkPage.java
+++ b/src/com/android/browser/AddBookmarkPage.java
@@ -159,8 +159,7 @@
                     final Cursor c =
                             BrowserBookmarksAdapter.queryBookmarksForUrl(
                                     cr, null, url, true);
-                    new DownloadTouchIcon(cr, c, url)
-                            .execute(mTouchIconUrl);
+                    new DownloadTouchIcon(cr, c, url).execute(mTouchIconUrl);
                 }
                 setResult(RESULT_OK);
             }