[3/5] Add translated rasterization support for RasterBuffer & below

cc/debug/rasterize_and_record_benchmark_impl.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/debug/rasterize_and_record_benchmark_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <limits>
 
 #include "base/values.h"
+#include "cc/base/scale_translate2d.h"
 #include "cc/debug/lap_timer.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/picture_layer_impl.h"
 #include "cc/raster/raster_buffer_provider.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "cc/trees/layer_tree_host_impl.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace cc {
@@ skipping 23 matching lines @@
     SkColor color = SK_ColorTRANSPARENT;
     *is_solid_color = raster_source->PerformSolidColorAnalysis(
         content_rect, raster_scales, &color);
 
     do {
       SkBitmap bitmap;
       bitmap.allocPixels(SkImageInfo::MakeN32Premul(content_rect.width(),
                                                     content_rect.height()));
       SkCanvas canvas(bitmap);
 
+      DCHECK_EQ(raster_scales.width(), raster_scales.height());

[enne (OOO), 2017/01/03 22:53:16]

I think raster_scales was a failed experiment.  You should be able to change
this to just have a single value.

[trchen, 2017/01/14 01:06:37]

Done. (Thanks vmpstr!)

       raster_source->PlaybackToCanvas(&canvas, content_rect, content_rect,
-                                      raster_scales,
+                                      ScaleTranslate2d(raster_scales.width(), gfx::Vector2dF()),
                                       RasterSource::PlaybackSettings());
 
       timer.NextLap();
     } while (!timer.HasTimeLimitExpired());
     base::TimeDelta duration =
         base::TimeDelta::FromMillisecondsD(timer.MsPerLap());
     if (duration < *min_time)
       *min_time = duration;
   }
 }
@@ skipping 150 matching lines @@
       total_memory_usage(0),
       total_layers(0),
       total_picture_layers(0),
       total_picture_layers_with_no_content(0),
       total_picture_layers_off_screen(0) {
 }
 
 RasterizeAndRecordBenchmarkImpl::RasterizeResults::~RasterizeResults() {}
 
 }  // namespace cc