allow canvas to force conservative clips (for speed)

src/core/SkPictureRecord.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPictureRecord.h"
 #include "SkBBoxHierarchy.h"
 #include "SkDevice.h"
@@ skipping 770 matching lines @@
     this->addRect(rect);
     this->addInt(ClipParams_pack(op, doAA));
     size_t offset = this->recordRestoreOffsetPlaceholder(op);
 
     this->validate(initialOffset, size);
     return offset;
 }
 
 void SkPictureRecord::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
     this->recordClipRRect(rrect, op, kSoft_ClipEdgeStyle == edgeStyle);
-    this->updateClipConservativelyUsingBounds(rrect.getBounds(), op, false);
+    this->INHERITED::onClipRRect(rrect, op, edgeStyle);
 }
 
 size_t SkPictureRecord::recordClipRRect(const SkRRect& rrect, SkRegion::Op op, bool doAA) {
     // op + rrect + clip params
     size_t size = 1 * kUInt32Size + SkRRect::kSizeInMemory + 1 * kUInt32Size;
     // recordRestoreOffsetPlaceholder doesn't always write an offset
     if (!fRestoreOffsetStack.isEmpty()) {
         // + restore offset
         size += kUInt32Size;
     }
     size_t initialOffset = this->addDraw(CLIP_RRECT, &size);
     this->addRRect(rrect);
     this->addInt(ClipParams_pack(op, doAA));
     size_t offset = recordRestoreOffsetPlaceholder(op);
     this->validate(initialOffset, size);
     return offset;
 }
 
 void SkPictureRecord::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
     int pathID = this->addPathToHeap(path);
     this->recordClipPath(pathID, op, kSoft_ClipEdgeStyle == edgeStyle);
-
-    this->updateClipConservativelyUsingBounds(path.getBounds(), op,
-                                              path.isInverseFillType());
+    this->INHERITED::onClipPath(path, op, edgeStyle);
 }
 
 size_t SkPictureRecord::recordClipPath(int pathID, SkRegion::Op op, bool doAA) {
     // op + path index + clip params
     size_t size = 3 * kUInt32Size;
     // recordRestoreOffsetPlaceholder doesn't always write an offset
     if (!fRestoreOffsetStack.isEmpty()) {
         // + restore offset
         size += kUInt32Size;
     }
@@ skipping 720 matching lines @@
 void SkPictureRecord::addTextBlob(const SkTextBlob *blob) {
     int index = fTextBlobRefs.count();
     *fTextBlobRefs.append() = blob;
     blob->ref();
     // follow the convention of recording a 1-based index
     this->addInt(index + 1);
 }
 
 ///////////////////////////////////////////////////////////////////////////////