RefCounted types should not have public destructors, delegate cleanup

remoting/client/frame_producer.h

Index: remoting/client/frame_producer.h
diff --git a/remoting/client/frame_producer.h b/remoting/client/frame_producer.h
index c7976c50ddd62bdffd675ec1e968696656a3121b..340fbb59cf85cad9a2c77e4776d4e905a203f00b 100644
--- a/remoting/client/frame_producer.h
+++ b/remoting/client/frame_producer.h
@@ -19,7 +19,6 @@ namespace remoting {
 class FrameProducer {
  public:
   FrameProducer() {}
-  virtual ~FrameProducer() {}
 
   // Adds an image buffer to the pool of pending buffers for subsequent drawing.
   // Once drawing is completed the buffer will be returned to the consumer via
@@ -43,6 +42,9 @@ class FrameProducer {
   virtual void SetOutputSizeAndClip(const SkISize& view_size,
                                     const SkIRect& clip_area) = 0;
 
+ protected:
+  virtual ~FrameProducer() {}
+
  private:
   DISALLOW_COPY_AND_ASSIGN(FrameProducer);
 };