[banshee] Threading: simplify couple of method calls to ThreadAssist class

[Andrés Aragoneses <aaragoneses src gnome org>]

commit 99466b14e5473e5a5357934940e7df61e93a02bd
Author: Andrés G. Aragoneses <knocte gmail com>
Date:   Tue Jan 21 20:35:50 2014 +0100

    Threading: simplify couple of method calls to ThreadAssist class
    
    ProxyToMain() and SpawnFromMain() already check .InMainThread
    so this simplification does not mean only less code (as it uses
    lambdas instead of delegates, too), but also a micro-optimization.

 .../Banshee.MediaEngine/PlayerEngine.cs            |    8 +-------
 src/Dap/Banshee.Dap/Banshee.Dap/DapSync.cs         |    8 ++------
 2 files changed, 3 insertions(+), 13 deletions(-)
---
diff --git a/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngine.cs 
b/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngine.cs
index de0f525..85a4ea9 100644
--- a/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngine.cs
+++ b/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngine.cs
@@ -220,13 +220,7 @@ namespace Banshee.MediaEngine
                 pending_track = null;
             }
 
-            if (ThreadAssist.InMainThread) {
-                RaiseEventChanged (args);
-            } else {
-                ThreadAssist.ProxyToMain (delegate {
-                    RaiseEventChanged (args);
-                });
-            }
+            ThreadAssist.ProxyToMain (() => RaiseEventChanged (args));
         }
 
         private void RaiseEventChanged (PlayerEventArgs args)
diff --git a/src/Dap/Banshee.Dap/Banshee.Dap/DapSync.cs b/src/Dap/Banshee.Dap/Banshee.Dap/DapSync.cs
index 38f5a43..08d0ea9 100644
--- a/src/Dap/Banshee.Dap/Banshee.Dap/DapSync.cs
+++ b/src/Dap/Banshee.Dap/Banshee.Dap/DapSync.cs
@@ -325,13 +325,9 @@ namespace Banshee.Dap
 
         public void Sync ()
         {
-            if (ThreadAssist.InMainThread) {
-                ThreadAssist.SpawnFromMain (delegate {
-                    sync_limiter.Execute ();
-                });
-            } else {
+            ThreadAssist.SpawnFromMain (delegate {
                 sync_limiter.Execute ();
-            }
+            });
         }
 
         private void RateLimitedSync ()