Add drawRegion() API to SkCanvas

src/core/SkRecorder.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBigPicture.h"
 #include "SkCanvasPriv.h"
 #include "SkImage.h"
@@ skipping 127 matching lines @@
                               const SkPoint pts[],
                               const SkPaint& paint) {
     APPEND(DrawPoints, paint, mode, SkToUInt(count), this->copy(pts, count));
 }
 
 void SkRecorder::onDrawRect(const SkRect& rect, const SkPaint& paint) {
     TRY_MINIRECORDER(drawRect, rect, paint);
     APPEND(DrawRect, paint, rect);
 }
 
+void SkRecorder::onDrawRegion(const SkRegion& region, const SkPaint& paint) {
+    APPEND(DrawRegion, paint, region);
+}
+
 void SkRecorder::onDrawOval(const SkRect& oval, const SkPaint& paint) {
     APPEND(DrawOval, paint, oval);
 }
 
 void SkRecorder::onDrawArc(const SkRect& oval, SkScalar startAngle, SkScalar sweepAngle,
                            bool useCenter, const SkPaint& paint) {
     APPEND(DrawArc, paint, oval, startAngle, sweepAngle, useCenter);
 }
 
 void SkRecorder::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) {
@@ skipping 256 matching lines @@
 }
 
 void SkRecorder::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
     INHERITED(onClipRegion, deviceRgn, op);
     APPEND(ClipRegion, this->devBounds(), deviceRgn, op);
 }
 
 sk_sp<SkSurface> SkRecorder::onNewSurface(const SkImageInfo&, const SkSurfaceProps&) {
     return nullptr;
 }