RESTRICT AUTOMERGE pixel-snap on HWUI side

Bug: 254771190
Test: android.uirendering.cts.testclasses.ExactCanvasTests#testDrawLine
Change-Id: Idfb5027fe3230f2c2b0cad224f2c7640e147ce4a
diff --git a/libs/hwui/renderthread/IRenderPipeline.h b/libs/hwui/renderthread/IRenderPipeline.h
index ef58bc5..54adec2 100644
--- a/libs/hwui/renderthread/IRenderPipeline.h
+++ b/libs/hwui/renderthread/IRenderPipeline.h
@@ -88,6 +88,8 @@
     virtual void setPictureCapturedCallback(
             const std::function<void(sk_sp<SkPicture>&&)>& callback) = 0;
 
+    virtual const SkM44& getPixelSnapMatrix() const = 0;
+
     virtual ~IRenderPipeline() {}
 };