Implements core logic for Pixel Canvas

cc/raster/raster_source.cc

Index: cc/raster/raster_source.cc
diff --git a/cc/raster/raster_source.cc b/cc/raster/raster_source.cc
index 1e7168ce87b214484a0eb4ebf5da45a9d7a66a6a..bb518863046c14c54621787c9e7e3723b3c27a0d 100644
--- a/cc/raster/raster_source.cc
+++ b/cc/raster/raster_source.cc
@@ -35,6 +35,7 @@ RasterSource::RasterSource(const RecordingSource* other)
       clear_canvas_with_debug_color_(other->clear_canvas_with_debug_color_),
       slow_down_raster_scale_factor_for_debug_(
           other->slow_down_raster_scale_factor_for_debug_),
+      recording_scale_factor_(other->recording_scale_factor_),
       image_decode_cache_(nullptr) {}
 RasterSource::~RasterSource() = default;
 
@@ -57,7 +58,8 @@ void RasterSource::PlaybackToCanvas(
   raster_canvas->clipRect(SkRect::MakeFromIRect(raster_bounds));
   raster_canvas->translate(raster_transform.translation().x(),
                            raster_transform.translation().y());
-  raster_canvas->scale(raster_transform.scale(), raster_transform.scale());
+  raster_canvas->scale(raster_transform.scale() / recording_scale_factor_,
+                       raster_transform.scale() / recording_scale_factor_);
   PlaybackToCanvas(raster_canvas, target_color_space, settings);
   raster_canvas->restore();
 }
@@ -219,6 +221,7 @@ bool RasterSource::PerformSolidColorAnalysis(gfx::Rect layer_rect,
   TRACE_EVENT0("cc", "RasterSource::PerformSolidColorAnalysis");
 
   layer_rect.Intersect(gfx::Rect(size_));
+  layer_rect = gfx::ScaleToRoundedRect(layer_rect, recording_scale_factor_);
   return display_list_->GetColorIfSolidInRect(layer_rect, color);
 }