move largest apis into private

Related to https://skia-review.googlesource.com/c/skia/+/91860

Bug: skia:
Change-Id: Ia8fd981b422bbab75541b078277d2e09e1fc9d41
Reviewed-on: https://skia-review.googlesource.com/91940
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/tools/debugger/SkDebugCanvas.cpp b/tools/debugger/SkDebugCanvas.cpp
index 1fe4bc3..0b46439 100644
--- a/tools/debugger/SkDebugCanvas.cpp
+++ b/tools/debugger/SkDebugCanvas.cpp
@@ -10,6 +10,7 @@
 #include "SkDebugCanvas.h"
 #include "SkDrawCommand.h"
 #include "SkPaintFilterCanvas.h"
+#include "SkRectPriv.h"
 #include "SkTextBlob.h"
 #include "SkClipOpPriv.h"
 
@@ -87,7 +88,7 @@
     // rounded out. The following code creates a nearly maximal rect that will
     // not get collapsed by the coming conversions (Due to precision loss the
     // inset has to be surprisingly large).
-    SkIRect largeIRect = SkIRect::MakeLargest();
+    SkIRect largeIRect = SkRectPriv::MakeILargest();
     largeIRect.inset(1024, 1024);
     SkRect large = SkRect::Make(largeIRect);
 #ifdef SK_DEBUG