Remove cullRect() from PaintOpBuffer.

cc/paint/paint_recorder.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/paint/paint_recorder.h"
 
 #include "cc/paint/paint_op_buffer.h"
 
 namespace cc {
 
 PaintRecorder::PaintRecorder() = default;
 
 PaintRecorder::~PaintRecorder() = default;
 
 PaintCanvas* PaintRecorder::beginRecording(const SkRect& bounds) {
-  buffer_.reset(new PaintOpBuffer(bounds));
-  canvas_.emplace(buffer_.get());
+  buffer_ = sk_make_sp<PaintOpBuffer>();
+  canvas_.emplace(buffer_.get(), bounds);
   return getRecordingCanvas();
 }
 
 sk_sp<PaintRecord> PaintRecorder::finishRecordingAsPicture() {
   // SkPictureRecorder users expect that their saves are automatically
   // closed for them.
   //
   // NOTE: Blink paint in general doesn't appear to need this, but the
   // RecordingImageBufferSurface::fallBackToRasterCanvas finishing off the
   // current frame depends on this.  Maybe we could remove this assumption and
   // just have callers do it.
   canvas_->restoreToCount(1);
 
   // Some users (e.g. printing) use the existence of the recording canvas
   // to know if recording is finished, so reset it here.
   canvas_.reset();
 
   buffer_->ShrinkToFit();
   return std::move(buffer_);
 }
 
 }  // namespace cc