Remove SkCanvas::isDrawingToLayer

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 "SkDevice.h"
 #include "SkPatchUtils.h"
@@ skipping 169 matching lines @@
 
     size_t initialOffset = this->addDraw(SAVE_LAYER, &size);
     this->addRectPtr(bounds);
     SkASSERT(initialOffset+get_paint_offset(SAVE_LAYER, size) == fWriter.bytesWritten());
     this->addPaintPtr(paint);
     this->addInt(flags);
 
     this->validate(initialOffset, size);
 }
 
-bool SkPictureRecord::isDrawingToLayer() const {
-    return fFirstSavedLayerIndex != kNoSavedLayerIndex;
-}
-
 #ifdef SK_DEBUG
 /*
  * Read the op code from 'offset' in 'writer' and extract the size too.
  */
 static DrawType peek_op_and_size(SkWriter32* writer, size_t offset, uint32_t* size) {
     uint32_t peek = writer->readTAt<uint32_t>(offset);
 
     uint32_t op;
     UNPACK_8_24(peek, op, *size);
     if (MASK_24 == *size) {
@@ skipping 809 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);
 }
 
 ///////////////////////////////////////////////////////////////////////////////