Introduce official public NativeWindow type.

Not yet hooked up to anything in the NDK, but requires renaming
the existing android_native_window_t type everywhere.

Change-Id: Iffee6ea39c93b8b34e20fb69e4d2c7c837e5ea2e
diff --git a/rs.spec b/rs.spec
index cb9937c..5ae8d01 100644
--- a/rs.spec
+++ b/rs.spec
@@ -29,7 +29,7 @@
 ContextSetSurface {
 	param uint32_t width
 	param uint32_t height
-	param android_native_window_t *sur
+	param ANativeWindow *sur
 	}
 
 ContextDump {
diff --git a/rsContext.cpp b/rsContext.cpp
index d8a9a99..596f533 100644
--- a/rsContext.cpp
+++ b/rsContext.cpp
@@ -473,7 +473,7 @@
     objDestroyOOBDestroy();
 }
 
-void Context::setSurface(uint32_t w, uint32_t h, android_native_window_t *sur)
+void Context::setSurface(uint32_t w, uint32_t h, ANativeWindow *sur)
 {
     rsAssert(mIsGraphicsContext);
 
@@ -888,7 +888,7 @@
     rsc->resume();
 }
 
-void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, android_native_window_t *sur)
+void rsi_ContextSetSurface(Context *rsc, uint32_t w, uint32_t h, ANativeWindow *sur)
 {
     rsc->setSurface(w, h, sur);
 }
diff --git a/rsContext.h b/rsContext.h
index 82c3687..709730e 100644
--- a/rsContext.h
+++ b/rsContext.h
@@ -98,7 +98,7 @@
 
     void pause();
     void resume();
-    void setSurface(uint32_t w, uint32_t h, android_native_window_t *sur);
+    void setSurface(uint32_t w, uint32_t h, ANativeWindow *sur);
     void setPriority(int32_t p);
 
     void assignName(ObjectBase *obj, const char *name, uint32_t len);
@@ -246,7 +246,7 @@
 
     static void * threadProc(void *);
 
-    android_native_window_t *mWndSurface;
+    ANativeWindow *mWndSurface;
 
     Vector<ObjectBase *> mNames;