Use SkTLazy to hold path in SkClipStack::Element

include/core/SkTLazy.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
@@ skipping 57 matching lines @@
     T* set(const T& src) {
         if (this->isValid()) {
             *fPtr = src;
         } else {
             fPtr = new (SkTCast<T*>(fStorage)) T(src);
         }
         return fPtr;
     }
 
     /**
+     * Destroy the lazy object (if it was created via init() or set())
+     */
+    void reset() {
+        if (this->isValid()) {
+            fPtr->~T();
+            fPtr = NULL;
+        }
+    }
+
+    /**
      *  Returns true if a valid object has been initialized in the SkTLazy,
      *  false otherwise.
      */
     bool isValid() const { return NULL != fPtr; }
 
     /**
      * Returns the object. This version should only be called when the caller
      * knows that the object has been initialized.
      */
     T* get() const { SkASSERT(this->isValid()); return fPtr; }
@@ skipping 85 matching lines @@
     operator const T*() const { return fObj; }
 
     const T& operator *() const { return *fObj; }
 
 private:
     const T*    fObj;
     SkTLazy<T>  fLazy;
 };
 
 #endif