path ops work in progress

src/pathops/SkPathOpsQuad.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkIntersections.h"
 #include "SkLineParameters.h"
 #include "SkPathOpsCubic.h"
 #include "SkPathOpsQuad.h"
@@ skipping 322 matching lines @@
  * c =             C
  */
 void SkDQuad::SetABC(const double* quad, double* a, double* b, double* c) {
     *a = quad[0];      // a = A
     *b = 2 * quad[2];  // b =     2*B
     *c = quad[4];      // c =             C
     *b -= *c;          // b =     2*B -   C
     *a -= *b;          // a = A - 2*B +   C
     *b -= *c;          // b =     2*B - 2*C
 }
+
+#ifdef SK_DEBUG
+void SkDQuad::dump() {
+    SkDebugf("{{");
+    int index = 0;
+    do {
+        fPts[index].dump();
+        SkDebugf(", ");
+    } while (++index < 2);
+    fPts[index].dump();
+    SkDebugf("}}\n");
+}
+#endif