All consumers now take an IGraphicBufferConsumer instead of a BufferQueue

this means they only have access to the consumer end of
the interface. we had a lot of code that assumed consumers
where holding a BufferQueue (i.e.: both ends), so most of
this change is untangling in fix that

Bug: 9265647
Change-Id: Ic2e2596ee14c7535f51bf26d9a897a0fc036d22c
diff --git a/services/surfaceflinger/SurfaceFlingerConsumer.h b/services/surfaceflinger/SurfaceFlingerConsumer.h
index 5de6d12..aa2b37f 100644
--- a/services/surfaceflinger/SurfaceFlingerConsumer.h
+++ b/services/surfaceflinger/SurfaceFlingerConsumer.h
@@ -36,7 +36,7 @@
     class BufferRejecter {
         friend class SurfaceFlingerConsumer;
         virtual bool reject(const sp<GraphicBuffer>& buf,
-                const BufferQueue::BufferItem& item) = 0;
+                const IGraphicBufferConsumer::BufferItem& item) = 0;
 
     protected:
         virtual ~BufferRejecter() { }