Make releaseEglSurface in EglRenderer asynchronous.

webrtc/api/android/java/src/org/webrtc/EglRenderer.java

Index: webrtc/api/android/java/src/org/webrtc/EglRenderer.java
diff --git a/webrtc/api/android/java/src/org/webrtc/EglRenderer.java b/webrtc/api/android/java/src/org/webrtc/EglRenderer.java
index 9fb035b34b9edaf37997e87276c6900e8b374dc1..65961bb56021d0c4bdc6472ed72a1bd0601145a2 100644
--- a/webrtc/api/android/java/src/org/webrtc/EglRenderer.java
+++ b/webrtc/api/android/java/src/org/webrtc/EglRenderer.java
@@ -435,8 +435,7 @@ public class EglRenderer implements VideoRenderer.Callbacks {
   /**
    * Release EGL surface. This function will block until the EGL surface is released.
    */
-  public void releaseEglSurface() {
-    final CountDownLatch completionLatch = new CountDownLatch(1);
+  public void releaseEglSurface(final Runnable completionCallback) {
     // Ensure that the render thread is no longer touching the Surface before returning from this
     // function.
     eglSurfaceCreationRunnable.setSurface(null /* surface */);
@@ -450,14 +449,13 @@ public class EglRenderer implements VideoRenderer.Callbacks {
               eglBase.detachCurrent();
               eglBase.releaseSurface();
             }
-            completionLatch.countDown();
+            completionCallback.run();
           }
         });
-      } else {
-        completionLatch.countDown();
+        return;
       }
     }
-    ThreadUtils.awaitUninterruptibly(completionLatch);
+    completionCallback.run();
   }
 
   /**