Always have a PinWatcher on a Pin

Clover/app/src/main/java/org/floens/chan/core/manager/PinnedManager.java

@@ -136,9 +136,7 @@ public class PinnedManager {
     }
 
     public void onPinViewed(Pin pin) {
-        if (pin.getPinWatcher() != null) {
         pin.getPinWatcher().onViewed();
-        }
 
         onPinsChanged();
     }

Clover/app/src/main/java/org/floens/chan/core/model/Pin.java

@@ -62,10 +62,6 @@ public class Pin {
 
     public boolean isError = false;
 
-    public PinWatcher getPinWatcher() {
-        return pinWatcher;
-    }
-
     public int getNewPostsCount() {
         if (watchLastCount < 0 || watchNewCount < 0) {
             return 0;
@@ -79,19 +75,11 @@ public class Pin {
     }
 
     public Post getLastSeenPost() {
-        if (pinWatcher == null) {
-            return null;
-        } else {
-            return pinWatcher.getLastSeenPost();
-        }
+        return getPinWatcher().getLastSeenPost();
     }
 
     public void updateWatch() {
-        if (pinWatcher == null) {
-            pinWatcher = new PinWatcher(this);
-        }
-
-        pinWatcher.update();
+        getPinWatcher().update();
     }
 
     public void destroyWatcher() {
@@ -108,4 +96,12 @@ public class Pin {
             updateWatch();
         }
     }
+
+    public PinWatcher getPinWatcher() {
+        if (pinWatcher == null) {
+            pinWatcher = new PinWatcher(this);
+        }
+
+        return pinWatcher;
+    }
 }