add flag to stage change to canvas virtual

TBR=fmalita

Change-Id: I65bad35c6f64574082fb3cb72e0fbb7bf01eb507
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2524821Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825207}

skia/config/SkUserConfig.h

@@ -206,6 +206,10 @@ SK_API void SkDebugf_FileLine(const char* file,
 #define SK_DISABLE_LEGACY_CONTEXT_FACTORIES
 #endif
 
+#ifndef SK_SUPPORT_LEGACY_ONDRAWIMAGERECT
+#define SK_SUPPORT_LEGACY_ONDRAWIMAGERECT
+#endif
+
 // For now, Chrome should only attempt to reduce opList splitting when recording
 // DDLs
 #ifndef SK_DISABLE_REDUCE_OPLIST_SPLITTING