cc: Refactored Tile::GetResourceId

cc/tile.cc

Index: cc/tile.cc
diff --git a/cc/tile.cc b/cc/tile.cc
index 818579128945893be96a5944179d164f808f8bea..dc5392e1d4df19bb7dd5b7cb6c80c6c34db94c77 100644
--- a/cc/tile.cc
+++ b/cc/tile.cc
@@ -5,6 +5,7 @@
 #include "cc/tile.h"
 
 #include "base/stringprintf.h"
+#include "cc/tile_drawing_info.h"
 #include "cc/tile_manager.h"
 #include "third_party/khronos/GLES2/gl2.h"
 
@@ -24,7 +25,8 @@ Tile::Tile(TileManager* tile_manager,
     content_rect_(content_rect),
     opaque_rect_(opaque_rect),
     contents_scale_(contents_scale),
-    layer_id_(layer_id) {
+    layer_id_(layer_id),
+    drawing_info_(this) {
   set_picture_pile(picture_pile);
   tile_manager_->RegisterTile(this);
 }