Add some more volatile paths.

src/core/SkClipStack.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkClipStack.h"
 #include "SkPath.h"
@@ skipping 107 matching lines @@
         }
         SkRect ovalRect;
         if (path.isOval(&ovalRect)) {
             SkRRect rrect;
             rrect.setOval(ovalRect);
             this->initRRect(saveCount, rrect, op, doAA);
             return;
         }
     }
     fPath.set(path);
+    fPath.get()->setIsVolatile(true);
     fType = kPath_Type;
     this->initCommon(saveCount, op, doAA);
 }
 
 void SkClipStack::Element::asPath(SkPath* path) const {
     switch (fType) {
         case kEmpty_Type:
             path->reset();
             break;
         case kRect_Type:
             path->reset();
             path->addRect(this->getRect());
             break;
         case kRRect_Type:
             path->reset();
             path->addRRect(fRRect);
             break;
         case kPath_Type:
             *path = *fPath.get();
             break;
     }
+    path->setIsVolatile(true);
 }
 
 void SkClipStack::Element::setEmpty() {
     fType = kEmpty_Type;
     fFiniteBound.setEmpty();
     fFiniteBoundType = kNormal_BoundsType;
     fIsIntersectionOfRects = false;
     fRRect.setEmpty();
     fPath.reset();
     fGenID = kEmptyGenID;
@@ skipping 739 matching lines @@
 
 void SkClipStack::dump() const {
     B2TIter iter(*this);
     const Element* e;
     while ((e = iter.next())) {
         e->dump();
         SkDebugf("\n");
     }
 }
 #endif