Make PDF clip code handle rrects.

src/pdf/SkPDFDevice.cpp

Index: src/pdf/SkPDFDevice.cpp
diff --git a/src/pdf/SkPDFDevice.cpp b/src/pdf/SkPDFDevice.cpp
index ce036d111279dfef64969c788cc636b47f62e053..a7ef08d21d56c22c8f20490896b1f6b9ac35b3de 100644
--- a/src/pdf/SkPDFDevice.cpp
+++ b/src/pdf/SkPDFDevice.cpp
@@ -503,14 +503,13 @@ void GraphicStackState::updateClip(const SkClipStack& clipStack,
                     emit_clip(NULL, &translatedClip, fContentStream);
                     break;
                 }
-                case SkClipStack::Element::kPath_Type: {
+                default: {
                     SkPath translatedPath;
-                    clipEntry->getPath().transform(transform, &translatedPath);
+                    clipEntry->asPath(&translatedPath);
+                    translatedPath.transform(transform, &translatedPath);
                     emit_clip(&translatedPath, NULL, fContentStream);
                     break;
                 }
-                default:
-                    SkASSERT(false);
             }
         }
     }