Implements core logic for Pixel Canvas

ui/compositor/canvas_painter.cc

Index: ui/compositor/canvas_painter.cc
diff --git a/ui/compositor/canvas_painter.cc b/ui/compositor/canvas_painter.cc
index a12e85ab06efe118dfddcef8d0cac1ca04b90f4a..fc6c1248c7601826df98281a2b63cc39c52ebad7 100644
--- a/ui/compositor/canvas_painter.cc
+++ b/ui/compositor/canvas_painter.cc
@@ -5,6 +5,7 @@
 #include "ui/compositor/canvas_painter.h"
 
 #include "cc/paint/display_item_list.h"
+#include "ui/compositor/compositor_switches.h"
 
 namespace ui {
 
@@ -17,7 +18,11 @@ CanvasPainter::CanvasPainter(SkBitmap* output,
       raster_scale_(raster_scale),
       clear_color_(clear_color),
       list_(new cc::DisplayItemList),
-      context_(list_.get(), raster_scale, gfx::Rect(paint_size_)) {}
+      context_(list_.get(),
+               raster_scale,
+               gfx::ScaleToRoundedRect(
+                   gfx::Rect(paint_size_),
+                   IsPixelCanvasRecordingEnabled() ? raster_scale : 1.f)) {}
 
 CanvasPainter::~CanvasPainter() {
   gfx::Size pixel_size = gfx::ScaleToCeiledSize(paint_size_, raster_scale_);