update androidsdk to new savelayer signature

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1540583002

NOTRY=True
NOTREECHECKS=True
TBR=

Review URL: https://codereview.chromium.org/1540583002
diff --git a/src/utils/android/SkAndroidSDKCanvas.cpp b/src/utils/android/SkAndroidSDKCanvas.cpp
index 9e1463d..45fcc75 100644
--- a/src/utils/android/SkAndroidSDKCanvas.cpp
+++ b/src/utils/android/SkAndroidSDKCanvas.cpp
@@ -319,10 +319,8 @@
     fProxyTarget->save();
 }
 
-SkCanvas::SaveLayerStrategy SkAndroidSDKCanvas::willSaveLayer(const SkRect* rect,
-                                                              const SkPaint* paint,
-                                                              SaveFlags flags) {
-    fProxyTarget->saveLayer(rect, paint, flags);
+SkCanvas::SaveLayerStrategy SkAndroidSDKCanvas::getSaveLayerStrategy(const SaveLayerRec& rec) {
+    fProxyTarget->saveLayer(rec);
     return SkCanvas::kNoLayer_SaveLayerStrategy;
 }