Remove parts of //cc we aren't using

cc/resources/skpicture_content_layer_updater.cc

-// Copyright 2011 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/resources/skpicture_content_layer_updater.h"
-
-#include "base/trace_event/trace_event.h"
-#include "cc/debug/rendering_stats_instrumentation.h"
-#include "cc/resources/layer_painter.h"
-#include "cc/resources/prioritized_resource.h"
-#include "cc/resources/resource_update_queue.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkPictureRecorder.h"
-
-namespace cc {
-
-SkPictureContentLayerUpdater::SkPictureContentLayerUpdater(
-    scoped_ptr<LayerPainter> painter,
-    int layer_id)
-    : ContentLayerUpdater(painter.Pass(), layer_id) {
-}
-
-SkPictureContentLayerUpdater::~SkPictureContentLayerUpdater() {}
-
-void SkPictureContentLayerUpdater::PrepareToUpdate(
-    const gfx::Size& content_size,
-    const gfx::Rect& paint_rect,
-    const gfx::Size& tile_size,
-    float contents_width_scale,
-    float contents_height_scale) {
-  SkPictureRecorder recorder;
-  SkCanvas* canvas =
-      recorder.beginRecording(paint_rect.width(), paint_rect.height(), NULL, 0);
-  DCHECK_EQ(paint_rect.width(), canvas->getBaseLayerSize().width());
-  DCHECK_EQ(paint_rect.height(), canvas->getBaseLayerSize().height());
-  PaintContents(canvas,
-                content_size,
-                paint_rect,
-                contents_width_scale,
-                contents_height_scale);
-  picture_ = skia::AdoptRef(recorder.endRecording());
-}
-
-void SkPictureContentLayerUpdater::DrawPicture(SkCanvas* canvas) {
-  TRACE_EVENT0("cc", "SkPictureContentLayerUpdater::DrawPicture");
-  if (picture_)
-    canvas->drawPicture(picture_.get());
-}
-
-}  // namespace cc