Avoid warnings on GCC 4.8.4

include/core/SkPath.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPath_DEFINED
 #define SkPath_DEFINED
 
@@ skipping 165 matching lines @@
      * @param dir       is the oval CCW (or CW if false).
      * @param start     indicates where the contour starts on the oval (see
      *                  SkPath::addOval for intepretation of the index).
      * @return true if this path is an oval.
      *              Tracking whether a path is an oval is considered an
      *              optimization for performance and so some paths that are in
      *              fact ovals can report false.
      */
     bool isOval(SkRect* rect, Direction* dir = nullptr,
                 unsigned* start = nullptr) const {
-        bool isCCW;
+        bool isCCW = false;
         bool result = fPathRef->isOval(rect, &isCCW, start);
         if (dir && result) {
             *dir = isCCW ? kCCW_Direction : kCW_Direction;
         }
         return result;
     }
 
     /** Returns true if the path is a round rect.
      *
      * @param rrect  Returns the bounding rect and radii of this round rect.
      * @param dir    is the rrect CCW (or CW if false).
      * @param start  indicates where the contour starts on the rrect (see
      *               SkPath::addRRect for intepretation of the index).
      *
      * @return true if this path is a round rect.
      *              Tracking whether a path is a round rect is considered an
      *              optimization for performance and so some paths that are in
      *              fact round rects can report false.
      */
     bool isRRect(SkRRect* rrect, Direction* dir = nullptr,
                  unsigned* start = nullptr) const {
-        bool isCCW;
+        bool isCCW = false;
         bool result = fPathRef->isRRect(rrect, &isCCW, start);
         if (dir && result) {
             *dir = isCCW ? kCCW_Direction : kCW_Direction;
         }
         return result;
     }
 
     /** Clear any lines and curves from the path, making it empty. This frees up
         internal storage associated with those segments.
         On Android, does not change fSourcePath.
@@ skipping 970 matching lines @@
 
     friend class SkAutoPathBoundsUpdate;
     friend class SkAutoDisableOvalCheck;
     friend class SkAutoDisableDirectionCheck;
     friend class SkBench_AddPathTest; // perf test reversePathTo
     friend class PathTest_Private; // unit test reversePathTo
     friend class ForceIsRRect_Private; // unit test isRRect
 };
 
 #endif