Start implementing SurfaceTexture streaming into RS allocations.

Change-Id: I561fbb63c63371ea59047c07fb2d68c21d16e76b
diff --git a/libs/rs/driver/rsdAllocation.h b/libs/rs/driver/rsdAllocation.h
index 4fc4419..230804b 100644
--- a/libs/rs/driver/rsdAllocation.h
+++ b/libs/rs/driver/rsdAllocation.h
@@ -67,6 +67,8 @@
                           RsAllocationUsageType src);
 void rsdAllocationMarkDirty(const android::renderscript::Context *rsc,
                             const android::renderscript::Allocation *alloc);
+int32_t rsdAllocationInitSurfaceTexture(const android::renderscript::Context *rsc,
+                                        const android::renderscript::Allocation *alloc);
 
 void rsdAllocationData1D(const android::renderscript::Context *rsc,
                          const android::renderscript::Allocation *alloc,