diff --git a/proguard.flags b/proguard.flags
index 0b28c0e..83a491d 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -57,3 +57,8 @@
   public float getAnimationProgress();
   public void setAnimationProgress(float);
 }
+
+-keep class com.android.launcher3.FastBitmapDrawable {
+  public int getBrightness();
+  public void setBrightness(int);
+}
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index ffbb873..f5e3bc6 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -166,7 +166,6 @@
 
     // To turn on these properties, type
     // adb shell setprop log.tag.PROPERTY_NAME [VERBOSE | SUPPRESS]
-    static final String FORCE_ENABLE_ROTATION_PROPERTY = "launcher_force_rotate";
     static final String DUMP_STATE_PROPERTY = "launcher_dump_state";
     static final String DISABLE_ALL_APPS_PROPERTY = "launcher_noallapps";
 
@@ -362,8 +361,6 @@
 
     private static PendingAddArguments sPendingAddItem;
 
-    public static boolean sForceEnableRotation = isPropertyEnabled(FORCE_ENABLE_ROTATION_PROPERTY);
-
     private static class PendingAddArguments {
         int requestCode;
         Intent intent;
@@ -378,10 +375,6 @@
 
     FocusIndicatorView mFocusHandler;
 
-    static boolean isPropertyEnabled(String propertyName) {
-        return Log.isLoggable(propertyName, Log.VERBOSE);
-    }
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         if (DEBUG_STRICT_MODE) {
@@ -2456,7 +2449,7 @@
                 case KeyEvent.KEYCODE_HOME:
                     return true;
                 case KeyEvent.KEYCODE_VOLUME_DOWN:
-                    if (isPropertyEnabled(DUMP_STATE_PROPERTY)) {
+                    if (Utilities.isPropertyEnabled(DUMP_STATE_PROPERTY)) {
                         dumpState();
                         return true;
                     }
@@ -4813,19 +4806,14 @@
         return oriMap[(d.getRotation() + indexOffset) % 4];
     }
 
-    public boolean isRotationEnabled() {
-        boolean enableRotation = sForceEnableRotation ||
-                getResources().getBoolean(R.bool.allow_rotation);
-        return enableRotation;
-    }
     public void lockScreenOrientation() {
-        if (isRotationEnabled()) {
+        if (Utilities.isRotationEnabled(this)) {
             setRequestedOrientation(mapConfigurationOriActivityInfoOri(getResources()
                     .getConfiguration().orientation));
         }
     }
     public void unlockScreenOrientation(boolean immediate) {
-        if (isRotationEnabled()) {
+        if (Utilities.isRotationEnabled(this)) {
             if (immediate) {
                 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
             } else {
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 48af216..e5fa032 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -16,6 +16,7 @@
 
 package com.android.launcher3;
 
+import android.annotation.TargetApi;
 import android.app.SearchManager;
 import android.content.ComponentName;
 import android.content.ContentResolver;
@@ -26,16 +27,15 @@
 import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.graphics.Point;
+import android.os.Build;
 import android.os.Handler;
 import android.util.DisplayMetrics;
 import android.util.Log;
 import android.view.Display;
 import android.view.WindowManager;
-
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
-
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 
@@ -194,6 +194,7 @@
         return LauncherFiles.SHARED_PREFERENCES_KEY;
     }
 
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
     DeviceProfile initDynamicGrid(Context context) {
         // Determine the dynamic grid properties
         WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
@@ -269,7 +270,7 @@
     public static boolean isDisableAllApps() {
         // Returns false on non-dogfood builds.
         return getInstance().mBuildInfo.isDogfoodBuild() &&
-                Launcher.isPropertyEnabled(Launcher.DISABLE_ALL_APPS_PROPERTY);
+                Utilities.isPropertyEnabled(Launcher.DISABLE_ALL_APPS_PROPERTY);
     }
 
     public static boolean isDogfoodBuild() {
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 1e751b0..c0f7591 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -94,7 +94,7 @@
         icon.setBounds(0, 0, sIconWidth, sIconHeight);
     }
 
-    private static boolean isPropertyEnabled(String propertyName) {
+    public static boolean isPropertyEnabled(String propertyName) {
         return Log.isLoggable(propertyName, Log.VERBOSE);
     }