Fix libgui warnings

The warnings were being hidden by the use of -isystem to include
frameworks/native/include.

Bug: 31752268
Test: m -j
Merged-in: Idba8278bc0a73886ecb7978617854b433c0b5875
Change-Id: Idba8278bc0a73886ecb7978617854b433c0b5875
diff --git a/include/gui/BufferQueueCore.h b/include/gui/BufferQueueCore.h
index 4ab5db1..8e9b0fc 100644
--- a/include/gui/BufferQueueCore.h
+++ b/include/gui/BufferQueueCore.h
@@ -305,8 +305,8 @@
 
     // Cached data about the shared buffer in shared buffer mode
     struct SharedBufferCache {
-        SharedBufferCache(Rect _crop, uint32_t _transform, int _scalingMode,
-                android_dataspace _dataspace)
+        SharedBufferCache(Rect _crop, uint32_t _transform,
+                uint32_t _scalingMode, android_dataspace _dataspace)
         : crop(_crop),
           transform(_transform),
           scalingMode(_scalingMode),
diff --git a/include/gui/IGraphicBufferProducer.h b/include/gui/IGraphicBufferProducer.h
index 00ed239..d74f1f6 100644
--- a/include/gui/IGraphicBufferProducer.h
+++ b/include/gui/IGraphicBufferProducer.h
@@ -350,7 +350,7 @@
     };
 
     // QueueBufferOutput must be a POD structure
-    struct __attribute__ ((__packed__)) QueueBufferOutput {
+    struct QueueBufferOutput {
         inline QueueBufferOutput() { }
         // outWidth - filled with default width applied to the buffer
         // outHeight - filled with default height applied to the buffer