add cast for tostring to fix google3

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2385353002

TBR=True
NOTRY=True

Review-Url: https://codereview.chromium.org/2385353002

diff --git a/src/effects/SkXfermodeImageFilter.cpp b/src/effects/SkXfermodeImageFilter.cpp
index 2335a76..420e6e2 100644 (file)
--- a/src/effects/SkXfermodeImageFilter.cpp
+++ b/src/effects/SkXfermodeImageFilter.cpp
@@ -188,7 +188,7 @@ void SkXfermodeImageFilter_Base::drawForeground(SkCanvas* canvas, SkSpecialImage
 #ifndef SK_IGNORE_TO_STRING
 void SkXfermodeImageFilter_Base::toString(SkString* str) const {
     str->appendf("SkXfermodeImageFilter: (");
-    str->appendf("blendmode: (%d)", fMode);
+    str->appendf("blendmode: (%d)", (int)fMode);
     if (this->getInput(0)) {
         str->appendf("foreground: (");
         this->getInput(0)->toString(str);