allow canvas to force conservative clips (for speed)

src/core/SkRecorder.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRecorder.h"
 #include "SkPatchUtils.h"
 #include "SkPicture.h"
 
 // SkCanvas will fail in mysterious ways if it doesn't know the real width and height.
 SkRecorder::SkRecorder(SkRecord* record, int width, int height)
-    : SkCanvas(width, height)
+    : SkCanvas(width, height, SkCanvas::kConservativeRasterClip_InitFlag)
     , fRecord(record)
     , fSaveLayerCount(0) {}
 
 void SkRecorder::forgetRecord() {
     fRecord = NULL;
 }
 
 // To make appending to fRecord a little less verbose.
 #define APPEND(T, ...) \
         SkNEW_PLACEMENT_ARGS(fRecord->append<SkRecords::T>(), SkRecords::T, (__VA_ARGS__))
@@ skipping 248 matching lines @@
     })
     APPEND(SetMatrix, matrix);
 }
 
 void SkRecorder::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
     INHERITED(onClipRect, rect, op, edgeStyle);
     APPEND(ClipRect, this->devBounds(), rect, op, edgeStyle == kSoft_ClipEdgeStyle);
 }
 
 void SkRecorder::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
-    INHERITED(updateClipConservativelyUsingBounds, rrect.getBounds(), op, false);
+    INHERITED(onClipRRect, rrect, op, edgeStyle);
     APPEND(ClipRRect, this->devBounds(), rrect, op, edgeStyle == kSoft_ClipEdgeStyle);
 }
 
 void SkRecorder::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
-    INHERITED(updateClipConservativelyUsingBounds, path.getBounds(), op, path.isInverseFillType());
+    INHERITED(onClipPath, path, op, edgeStyle);
     APPEND(ClipPath, this->devBounds(), delay_copy(path), op, edgeStyle == kSoft_ClipEdgeStyle);
 }
 
 void SkRecorder::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
     INHERITED(onClipRegion, deviceRgn, op);
     APPEND(ClipRegion, this->devBounds(), delay_copy(deviceRgn), op);
 }
 
 void SkRecorder::beginCommentGroup(const char* description) {
     APPEND(BeginCommentGroup, this->copy(description));
 }
 
 void SkRecorder::addComment(const char* key, const char* value) {
     APPEND(AddComment, this->copy(key), this->copy(value));
 }
 
 void SkRecorder::endCommentGroup() {
     APPEND(EndCommentGroup);
 }
 
 bool SkRecorder::isDrawingToLayer() const {
     return fSaveLayerCount > 0;
 }
 
 void SkRecorder::drawData(const void* data, size_t length) {
     APPEND(DrawData, copy((const char*)data), length);
 }