Raster PictureLayerTiling with fractional translation

cc/raster/raster_buffer_provider.cc

Index: cc/raster/raster_buffer_provider.cc
diff --git a/cc/raster/raster_buffer_provider.cc b/cc/raster/raster_buffer_provider.cc
index 100de97b5fea57fa4253b29114d2de94949b4e51..4c9b5705b6059b0c53d82150b857bd1446b43ba9 100644
--- a/cc/raster/raster_buffer_provider.cc
+++ b/cc/raster/raster_buffer_provider.cc
@@ -7,6 +7,7 @@
 #include <stddef.h>
 
 #include "base/trace_event/trace_event.h"
+#include "cc/base/scale_translate2d.h"
 #include "cc/playback/raster_source.h"
 #include "cc/raster/texture_compressor.h"
 #include "cc/resources/platform_color.h"
@@ -51,7 +52,7 @@ void RasterBufferProvider::PlaybackToMemory(
     const RasterSource* raster_source,
     const gfx::Rect& canvas_bitmap_rect,
     const gfx::Rect& canvas_playback_rect,
-    float scale,
+    const ScaleTranslate2d& transform,
     const RasterSource::PlaybackSettings& playback_settings) {
   TRACE_EVENT0("disabled-by-default-cc.debug",
                "RasterBufferProvider::PlaybackToMemory");
@@ -79,7 +80,7 @@ void RasterBufferProvider::PlaybackToMemory(
       sk_sp<SkSurface> surface =
           SkSurface::MakeRasterDirect(info, memory, stride, &surface_props);
       raster_source->PlaybackToCanvas(surface->getCanvas(), canvas_bitmap_rect,
-                                      canvas_playback_rect, scale,
+                                      canvas_playback_rect, transform,
                                       playback_settings);
       return;
     }
@@ -89,7 +90,7 @@ void RasterBufferProvider::PlaybackToMemory(
       // TODO(reveman): Improve partial raster support by reducing the size of
       // playback rect passed to PlaybackToCanvas. crbug.com/519070
       raster_source->PlaybackToCanvas(surface->getCanvas(), canvas_bitmap_rect,
-                                      canvas_bitmap_rect, scale,
+                                      canvas_bitmap_rect, transform,
                                       playback_settings);
 
       if (format == ETC1) {