Eliminate custom alpha handling in CellLayout

Also rename CellLayoutChildren to ShortcutsAndWidgetsView

Change-Id: Ic2ebc5497adb153cc2fce99730cc2c6fbdc101e6
diff --git a/src/com/android/launcher2/Folder.java b/src/com/android/launcher2/Folder.java
index 07e76c9..4621c85 100644
--- a/src/com/android/launcher2/Folder.java
+++ b/src/com/android/launcher2/Folder.java
@@ -148,7 +148,7 @@
         super.onFinishInflate();
         mContent = (CellLayout) findViewById(R.id.folder_content);
         mContent.setGridSize(0, 0);
-        mContent.getChildrenLayout().setMotionEventSplittingEnabled(false);
+        mContent.getShortcutsAndWidgets().setMotionEventSplittingEnabled(false);
         mFolderName = (FolderEditText) findViewById(R.id.folder_name);
         mFolderName.setFolder(this);
         mFolderName.setOnFocusChangeListener(this);
@@ -731,7 +731,7 @@
         mLauncher.getWorkspace().setFinalScrollForPageChange(currentPage);
         // We first fetch the currently visible CellLayoutChildren
         CellLayout currentLayout = (CellLayout) mLauncher.getWorkspace().getChildAt(currentPage);
-        CellLayoutChildren boundingLayout = currentLayout.getChildrenLayout();
+        ShortcutAndWidgetContainer boundingLayout = currentLayout.getShortcutsAndWidgets();
         Rect bounds = new Rect();
         parent.getDescendantRectRelativeToSelf(boundingLayout, bounds);
         // We reset the workspaces scroll
@@ -822,11 +822,11 @@
     }
 
     public int getItemCount() {
-        return mContent.getChildrenLayout().getChildCount();
+        return mContent.getShortcutsAndWidgets().getChildCount();
     }
 
     public View getItemAt(int index) {
-        return mContent.getChildrenLayout().getChildAt(index);
+        return mContent.getShortcutsAndWidgets().getChildAt(index);
     }
 
     private void onCloseComplete() {