[NOT FOR COMMIT] Fully replace SkCanvas uses.

skia/ext/cdl_picture_recorder.h

+// Copyright (c) 2013 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.
+
+#ifndef SKIA_EXT_CDL_PICTURE_RECORDER_H_
+#define SKIA_EXT_CDL_PICTURE_RECORDER_H_
+
+#include "cdl_common.h"
+
+#if CDL_ENABLED
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "base/compiler_specific.h"
+#include "base/synchronization/lock.h"
+#include "third_party/skia/include/core/SkCanvas.h"
+#include "third_party/skia/include/core/SkBBHFactory.h"
+#include "third_party/skia/include/core/SkPictureRecorder.h"
+
+class CdlCanvas;
+class CdlPictureBuffer;
+class CdlPicture;
+class CdlPictureRecordingCanvas;
+
+class SK_API CdlPictureRecorder : SkNoncopyable {
+ public:
+  CdlPictureRecorder();
+  ~CdlPictureRecorder();
+
+  CdlCanvas* beginRecording(const SkRect& bounds,
+                            SkBBHFactory* bbhFactory = NULL,
+                            uint32_t recordFlags = 0);
+
+  CdlCanvas* beginRecording(SkScalar width,
+                            SkScalar height,
+                            SkBBHFactory* bbhFactory = NULL,
+                            uint32_t recordFlags = 0) {
+    return this->beginRecording(SkRect::MakeWH(width, height), bbhFactory,
+                                recordFlags);
+  }
+
+  /** Returns the recording canvas if one is active, or NULL if recording is
+      not active. This does not alter the refcnt on the canvas (if present).
+  */
+  CdlCanvas* getRecordingCanvas();
+
+  sk_sp<CdlPicture> finishRecordingAsPicture(uint32_t endFlags = 0);
+
+ private:
+  void reset();
+
+  bool fActivelyRecording;
+  int start_offset_;
+  uint32_t fFlags;
+  SkRect fCullRect;
+
+  std::shared_ptr<CdlPictureRecordingCanvas> fRecorder;
+  sk_sp<CdlPictureBuffer> fRecord;
+
+  static base::Lock lock;
+  static std::shared_ptr<CdlPictureRecordingCanvas> free_recorder;
+};
+
+#else  // CDL_ENABLED
+
+#include "third_party/skia/include/core/SkPictureRecorder.h"
+
+#endif  // CDL_ENABLED
+
+#endif  // SKIA_EXT_CDL_PICTURE_RECORDER_H_