cc: Add rasterize and record micro benchmark.

cc/resources/picture_pile_base.cc

 // Copyright 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.
 
 #include "cc/resources/picture_pile_base.h"
 
 #include <algorithm>
 #include <set>
 #include <vector>
 
@@ skipping 110 matching lines @@
   //
   // For example, if a 1/4 contents scale is used, then that would be 3 buffer
   // pixels, since that's the minimum number of pixels to add so that resulting
   // content can be snapped to a four pixel aligned grid.
   int buffer_pixels = static_cast<int>(ceil(1 / min_contents_scale) - 1);
   buffer_pixels = std::max(0, buffer_pixels);
   SetBufferPixels(buffer_pixels);
   min_contents_scale_ = min_contents_scale;
 }
 
-void PicturePileBase::SetTileGridSize(gfx::Size tile_grid_size) {
-  tile_grid_info_.fTileInterval.set(
-      tile_grid_size.width() - 2 * kTileGridBorderPixels,
-      tile_grid_size.height() - 2 * kTileGridBorderPixels);
-  DCHECK_GT(tile_grid_info_.fTileInterval.width(), 0);
-  DCHECK_GT(tile_grid_info_.fTileInterval.height(), 0);
-  tile_grid_info_.fMargin.set(kTileGridBorderPixels,
-      kTileGridBorderPixels);
+// static
+void PicturePileBase::ComputeTileGridInfo(
+    gfx::Size tile_grid_size,
+    SkTileGridPicture::TileGridInfo* info) {
+  DCHECK(info);
+  info->fTileInterval.set(tile_grid_size.width() - 2 * kTileGridBorderPixels,
+                          tile_grid_size.height() - 2 * kTileGridBorderPixels);
+  DCHECK_GT(info->fTileInterval.width(), 0);
+  DCHECK_GT(info->fTileInterval.height(), 0);
+  info->fMargin.set(kTileGridBorderPixels, kTileGridBorderPixels);
   // Offset the tile grid coordinate space to take into account the fact
   // that the top-most and left-most tiles do not have top and left borders
   // respectively.
-  tile_grid_info_.fOffset.set(-kTileGridBorderPixels,
-      -kTileGridBorderPixels);
+  info->fOffset.set(-kTileGridBorderPixels, -kTileGridBorderPixels);
+}
+
+void PicturePileBase::SetTileGridSize(gfx::Size tile_grid_size) {
+  ComputeTileGridInfo(tile_grid_size, &tile_grid_info_);
 }
 
 void PicturePileBase::SetBufferPixels(int new_buffer_pixels) {
   if (new_buffer_pixels == buffer_pixels())
     return;
 
   Clear();
   tiling_.SetBorderTexels(new_buffer_pixels);
 }
 
@@ skipping 68 matching lines @@
 
 PicturePileBase::PictureInfo PicturePileBase::PictureInfo::CloneForThread(
     int thread_index) const {
   PictureInfo info = *this;
   if (picture.get())
     info.picture = picture->GetCloneForDrawingOnThread(thread_index);
   return info;
 }
 
 }  // namespace cc