[HWUI] Use ANativeWindow_getNextFrameId api.

This is part of the work to move away from gui/Surface and onto
ANativeWindow in HWUI.

Bug: 137012798
Test: builds
Change-Id: I5862d7833b583b8295d1677e725ed58d97808b27
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index 699b96a..c1435d1e 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -700,7 +700,7 @@
 int64_t CanvasContext::getFrameNumber() {
     // mFrameNumber is reset to -1 when the surface changes or we swap buffers
     if (mFrameNumber == -1 && mNativeSurface.get()) {
-        mFrameNumber = static_cast<int64_t>(mNativeSurface->getNextFrameNumber());
+        mFrameNumber = ANativeWindow_getNextFrameId(mNativeSurface->getNativeWindow());
     }
     return mFrameNumber;
 }