Making all provider calls using content resolver.

This will allow us to easily move db creation out of onCreate

Change-Id: Idd949624b0a9c95e4451e48db7764b7b7922c40a
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index f0e34e5..6ce7c5f 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -134,7 +134,7 @@
     }
 
     LauncherModel setLauncher(Launcher launcher) {
-        getLauncherProvider().setLauncherProviderChangeListener(launcher);
+        sLauncherProvider.get().setLauncherProviderChangeListener(launcher);
         mModel.initialize(launcher);
         mAccessibilityDelegate = ((launcher != null) && Utilities.ATLEAST_LOLLIPOP) ?
             new LauncherAccessibilityDelegate(launcher) : null;
@@ -157,10 +157,6 @@
         sLauncherProvider = new WeakReference<LauncherProvider>(provider);
     }
 
-    public static LauncherProvider getLauncherProvider() {
-        return sLauncherProvider.get();
-    }
-
     public WidgetPreviewLoader getWidgetCache() {
         return mWidgetCache;
     }