Allow reset of the SkPictureRecorder cull rect before endRecording.

src/core/SkPictureRecorder.cpp

Index: src/core/SkPictureRecorder.cpp
diff --git a/src/core/SkPictureRecorder.cpp b/src/core/SkPictureRecorder.cpp
index 877314ccafd98bca89c89a19e97f3f5bcad3acef..8254801d6960fcc5ea47280250159a264d82e8bf 100644
--- a/src/core/SkPictureRecorder.cpp
+++ b/src/core/SkPictureRecorder.cpp
@@ -95,6 +95,19 @@ SkPicture* SkPictureRecorder::endRecordingAsPicture() {
                                      subPictureBytes));
 }
 
+SkPicture* SkPictureRecorder::endRecordingAsPicture(const SkRect& cullRect,
+                                                    SkBBHFactory* bbhFactory /* = NULL */) {
+    fCullRect = cullRect;
+
+    if (bbhFactory) {
+        fBBH.reset((*bbhFactory)(cullRect));
+        SkASSERT(fBBH.get());
+    }
+
+    return this->endRecordingAsPicture();
+}
+
+
 void SkPictureRecorder::partialReplay(SkCanvas* canvas) const {
     if (NULL == canvas) {
         return;