Remove parts of //cc we aren't using

cc/debug/picture_debug_util.cc

-// Copyright 2015 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/debug/picture_debug_util.h"
-
-#include <vector>
-
-#include "base/base64.h"
-#include "base/memory/scoped_ptr.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkData.h"
-#include "third_party/skia/include/core/SkImageInfo.h"
-#include "third_party/skia/include/core/SkPicture.h"
-#include "third_party/skia/include/core/SkPixelSerializer.h"
-#include "third_party/skia/include/core/SkStream.h"
-#include "ui/gfx/codec/jpeg_codec.h"
-#include "ui/gfx/codec/png_codec.h"
-
-namespace {
-
-class BitmapSerializer : public SkPixelSerializer {
- protected:
-  bool onUseEncodedData(const void* data, size_t len) override { return true; }
-
-  SkData* onEncodePixels(const SkImageInfo& info,
-                         const void* pixels,
-                         size_t row_bytes) override {
-    const int kJpegQuality = 80;
-    std::vector<unsigned char> data;
-
-    // If bitmap is opaque, encode as JPEG.
-    // Otherwise encode as PNG.
-    bool encoding_succeeded = false;
-    if (info.isOpaque()) {
-      encoding_succeeded =
-          gfx::JPEGCodec::Encode(reinterpret_cast<const unsigned char*>(pixels),
-                                 gfx::JPEGCodec::FORMAT_SkBitmap, info.width(),
-                                 info.height(), row_bytes, kJpegQuality, &data);
-    } else {
-      SkBitmap bm;
-      // The cast is ok, since we only read the bm.
-      if (!bm.installPixels(info, const_cast<void*>(pixels), row_bytes)) {
-        return nullptr;
-      }
-      encoding_succeeded = gfx::PNGCodec::EncodeBGRASkBitmap(bm, false, &data);
-    }
-
-    if (encoding_succeeded) {
-      return SkData::NewWithCopy(&data.front(), data.size());
-    }
-    return nullptr;
-  }
-};
-
-}  // namespace
-
-namespace cc {
-
-void PictureDebugUtil::SerializeAsBase64(const SkPicture* picture,
-                                         std::string* output) {
-  SkDynamicMemoryWStream stream;
-  BitmapSerializer serializer;
-  picture->serialize(&stream, &serializer);
-
-  size_t serialized_size = stream.bytesWritten();
-  scoped_ptr<char[]> serialized_picture(new char[serialized_size]);
-  stream.copyTo(serialized_picture.get());
-  base::Base64Encode(std::string(serialized_picture.get(), serialized_size),
-                     output);
-}
-
-}  // namespace cc