drawRegion() cleanups

(1) Move implementation to the cpp.
(2) Check for the isRect() case.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2286693002

Review-Url: https://codereview.chromium.org/2286693002

1 files changed, 12 insertions, 0 deletions

diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 4cf40e9c5a..fc1897526c 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -1975,6 +1975,18 @@ void SkCanvas::drawRect(const SkRect& r, const SkPaint& paint) {
     this->onDrawRect(r, paint);
 }
 
+void SkCanvas::drawRegion(const SkRegion& region, const SkPaint& paint) {
+    if (region.isEmpty()) {
+        return;
+    }
+
+    if (region.isRect()) {
+        return this->drawIRect(region.getBounds(), paint);
+    }
+
+    this->onDrawRegion(region, paint);
+}
+
 void SkCanvas::drawOval(const SkRect& r, const SkPaint& paint) {
     this->onDrawOval(r, paint);
 }