Revert of pathops version two

src/pathops/SkPathOpsTightBounds.cpp

Index: src/pathops/SkPathOpsTightBounds.cpp
diff --git a/src/pathops/SkPathOpsTightBounds.cpp b/src/pathops/SkPathOpsTightBounds.cpp
index d03efeb173e1d6ba08114686fab376c43a5c1b85..0f63f396e7edaf7c74901f1c97108e7273e8c453 100644
--- a/src/pathops/SkPathOpsTightBounds.cpp
+++ b/src/pathops/SkPathOpsTightBounds.cpp
@@ -8,16 +8,14 @@
 #include "SkPathOpsCommon.h"
 
 bool TightBounds(const SkPath& path, SkRect* result) {
-    SkOpContour contour;
-    SkOpGlobalState globalState( NULL  PATH_OPS_DEBUG_PARAMS(&contour));
     // turn path into list of segments
-    SkChunkAlloc allocator(4096);  // FIXME: constant-ize, tune
-    SkOpEdgeBuilder builder(path, &contour, &allocator, &globalState);
-    if (!builder.finish(&allocator)) {
+    SkTArray<SkOpContour> contours;
+    SkOpEdgeBuilder builder(path, contours);
+    if (!builder.finish()) {
         return false;
     }
-    SkTDArray<SkOpContour* > contourList;
-    MakeContourList(&contour, contourList, false, false);
+    SkTArray<SkOpContour*, true> contourList;
+    MakeContourList(contours, contourList, false, false);
     SkOpContour** currentPtr = contourList.begin();
     result->setEmpty();
     if (!currentPtr) {