Merge 210098 "cc: Eliminate tile.h's dependency on tile_manager.h"

Merge 210098 "cc: Eliminate tile.h's dependency on tile_manager.h"

> cc: Eliminate tile.h's dependency on tile_manager.h
> 
> Tile needs the raster mode and tile priority, which are
> currently included via raster_worker_pool, which is included
> by the tile manager. Since tile at the layer's level, it really
> shouldn't include raster worker pool at any point.
> 
> This patch moves raster mode and tile priority to a separate
> tile data file. This would also be a good spot for combining
> content_rect and contents_scale into TileRect (which is something
> I'd like to do)
> 
> BUG=253972
> 
> Review URL: https://chromiumcodereview.appspot.com/17625002

TBR=vmpstr@chromium.org
BUG=253972, 257601
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=211725

[reveman, 2013-07-15 23:14:29]

Committed patchset #1 manually as r211725.