Frameworks/base: Wall Werror in native/graphics

Turn on -Wall -Werror in native/graphics. Mask skia warnings.

Change-Id: Ia671e91348296ace84d9a24b3c6c025fa889bead
diff --git a/native/graphics/jni/bitmap.cpp b/native/graphics/jni/bitmap.cpp
index df0751d..ea32edc 100644
--- a/native/graphics/jni/bitmap.cpp
+++ b/native/graphics/jni/bitmap.cpp
@@ -15,7 +15,11 @@
  */
 
 #include <android/bitmap.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
 #include <GraphicsJNI.h>
+#pragma GCC diagnostic pop
 
 int AndroidBitmap_getInfo(JNIEnv* env, jobject jbitmap,
                           AndroidBitmapInfo* info) {