cc: Remove tile sharing from tilings.

cc/layers/picture_layer_impl.cc

Index: cc/layers/picture_layer_impl.cc
diff --git a/cc/layers/picture_layer_impl.cc b/cc/layers/picture_layer_impl.cc
index e9188ec678fbefb736b8a5db9d70934fc354392d..fa7b914c2a08ebf26726e1a30990b5dbf0a4ff58 100644
--- a/cc/layers/picture_layer_impl.cc
+++ b/cc/layers/picture_layer_impl.cc
@@ -630,7 +630,8 @@ Region PictureLayerImpl::GetInvalidationRegion() {
 
 scoped_refptr<Tile> PictureLayerImpl::CreateTile(
     float contents_scale,
-    const gfx::Rect& content_rect) {
+    const gfx::Rect& content_rect,
+    scoped_refptr<RasterSource>* raster_source) {

[enne (OOO), 2015/04/20 22:36:28]

Pointer to a refptr <_<

Is this something that needs to get landed in this patch? I think there are
other ways to remove the update raster source on activation loop.

[vmpstr, 2015/04/22 18:38:57]

Done.

   int flags = 0;
 
   // We don't handle solid color masks, so we shouldn't bother analyzing those.
@@ -639,8 +640,8 @@ scoped_refptr<Tile> PictureLayerImpl::CreateTile(
     flags = Tile::USE_PICTURE_ANALYSIS;
 
   return layer_tree_impl()->tile_manager()->CreateTile(
-      raster_source_.get(), content_rect.size(), content_rect, contents_scale,
-      id(), layer_tree_impl()->source_frame_number(), flags);
+      raster_source, content_rect.size(), content_rect, contents_scale, id(),
+      layer_tree_impl()->source_frame_number(), flags);
 }
 
 const Region* PictureLayerImpl::GetPendingInvalidation() {