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/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index 602554a..f56d19b 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -793,6 +793,10 @@
     return size;
 }
 
+const SkM44& CanvasContext::getPixelSnapMatrix() const {
+    return mRenderPipeline->getPixelSnapMatrix();
+}
+
 void CanvasContext::prepareAndDraw(RenderNode* node) {
     ATRACE_CALL();