Cleaning up the ResourcesUtils

app/src/main/java/acr/browser/lightning/utils/ResourceUtils.java

@@ -4,11 +4,21 @@ import android.content.Context;
 import android.support.annotation.DimenRes;
 import android.support.annotation.NonNull;
 
+/**
+ * Utils related to resources.
+ */
 public final class ResourceUtils {
 
     private ResourceUtils() {}
 
+    /**
+     * Returns the dimension in pixels.
+     *
+     * @param context the context needed to get the dimension.
+     * @param res     the resource to get.
+     * @return the dimension value in pixels.
+     */
     public static int dimen(@NonNull Context context, @DimenRes int res) {
-        return Math.round(context.getResources().getDimension(res));
+        return context.getResources().getDimensionPixelSize(res);
     }
 }