Sketch splitting SkPicture into an interface and SkBigPicture.

Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
These cover about 89% of draw calls from Blink SKPs,
and about 25% of draw calls from our GMs.

SkPicture handles:
  - serialization and deserialization
  - unique IDs

Everything else is left to the subclasses:
  - playback(), cullRect()
  - hasBitmap(), hasText(), suitableForGPU(), etc.
  - LayerInfo / AccelData if applicable.

The time to record a 1-op picture improves a good chunk
(2 mallocs to 1), and the time to record a 0-op picture
greatly improves (2 mallocs to none):

    picture_overhead_draw:   450ns -> 350ns
    picture_overhead_nodraw: 300ns -> 90ns

BUG=skia:

Review URL: https://codereview.chromium.org/1112523006

1 files changed, 0 insertions, 25 deletions

diff --git a/src/utils/SkPictureUtils.cpp b/src/utils/SkPictureUtils.cpp
deleted file mode 100644
index a8a251c927..0000000000
--- a/src/utils/SkPictureUtils.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkBBoxHierarchy.h"
-#include "SkCanvas.h"
-#include "SkData.h"
-#include "SkPictureUtils.h"
-#include "SkRecord.h"
-#include "SkShader.h"
-
-size_t SkPictureUtils::ApproximateBytesUsed(const SkPicture* pict) {
-    size_t byteCount = sizeof(*pict);
-
-    byteCount += pict->fRecord->bytesUsed();
-    if (pict->fBBH.get()) {
-        byteCount += pict->fBBH->bytesUsed();
-    }
-    byteCount += pict->fApproxBytesUsedBySubPictures;
-
-    return byteCount;
-}