explicitly size fType in SkRRect, to ensure the are no uninitialized bytes

include/core/SkRRect.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkRRect_DEFINED
 #define SkRRect_DEFINED
 
@@ skipping 77 matching lines @@
     /**
      * Returns the RR's sub type.
      */
     Type getType() const {
         SkDEBUGCODE(this->validate();)
 
         if (kUnknown_Type == fType) {
             this->computeType();
         }
         SkASSERT(kUnknown_Type != fType);
-        return fType;
+        return static_cast<Type>(fType);
     }
 
     Type type() const { return this->getType(); }
 
     inline bool isEmpty() const { return kEmpty_Type == this->getType(); }
     inline bool isRect() const { return kRect_Type == this->getType(); }
     inline bool isOval() const { return kOval_Type == this->getType(); }
     inline bool isSimple() const { return kSimple_Type == this->getType(); }
     inline bool isSimpleCircular() const {
         return this->isSimple() && fRadii[0].fX == fRadii[0].fY;
@@ skipping 188 matching lines @@
      * Prints the rrect using SkDebugf. This is intended for Skia development debugging. Don't
      * rely on the existence of this function or the formatting of its output.
      */
     void dump() const;
 #endif
 
 private:
     SkRect fRect;
     // Radii order is UL, UR, LR, LL. Use Corner enum to index into fRadii[]
     SkVector fRadii[4];
-    mutable Type fType;
+    // use an explicitly sized type so we're sure the class is dense (no uninitialized bytes)
+    mutable int32_t fType;
     // TODO: add padding so we can use memcpy for flattening and not copy
     // uninitialized data
 
     void computeType() const;
     bool checkCornerContainment(SkScalar x, SkScalar y) const;
 
     // to access fRadii directly
     friend class SkPath;
 };
 
 #endif