Cherry-pick two BufferItem changes

libcameraservice: Stop using IGBC::BufferItem
(cherry picked from commit 027c772ed30ddd32808df669e37a53e9b97b1f99)

libstagefright: Stop using IGBC::BufferItem
(cherry picked from commit 983e2be81f9ea767ae4d8b19669c1c080ecf58d4)
diff --git a/services/camera/libcameraservice/device3/Camera3InputStream.cpp b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
index 319be1d..9c1e28b 100644
--- a/services/camera/libcameraservice/device3/Camera3InputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
@@ -18,6 +18,7 @@
 #define ATRACE_TAG ATRACE_TAG_CAMERA
 //#define LOG_NDEBUG 0
 
+#include <gui/BufferItem.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
 #include "Camera3InputStream.h"
diff --git a/services/camera/libcameraservice/device3/Camera3InputStream.h b/services/camera/libcameraservice/device3/Camera3InputStream.h
index ae49467..fd17f4f 100644
--- a/services/camera/libcameraservice/device3/Camera3InputStream.h
+++ b/services/camera/libcameraservice/device3/Camera3InputStream.h
@@ -48,8 +48,6 @@
 
   private:
 
-    typedef BufferItemConsumer::BufferItem BufferItem;
-
     sp<BufferItemConsumer> mConsumer;
     Vector<BufferItem> mBuffersInFlight;