cc: Don't require low res to activate for shared ready-to-draw tiles.

cc/test/fake_picture_layer_impl.cc

Index: cc/test/fake_picture_layer_impl.cc
diff --git a/cc/test/fake_picture_layer_impl.cc b/cc/test/fake_picture_layer_impl.cc
index 78924cdaa93b78d4394e7e1e76667de4ddfac15a..98e0f6e58554b202d74fce8311bdcc571691744e 100644
--- a/cc/test/fake_picture_layer_impl.cc
+++ b/cc/test/fake_picture_layer_impl.cc
@@ -140,13 +140,17 @@ void FakePictureLayerImpl::SetAllTilesReadyInTiling(
   std::vector<Tile*> tiles = tiling->AllTilesForTesting();
   for (size_t tile_idx = 0; tile_idx < tiles.size(); ++tile_idx) {
     Tile* tile = tiles[tile_idx];
-    ManagedTileState& state = tile->managed_state();
-    for (size_t mode_idx = 0; mode_idx < NUM_RASTER_MODES; ++mode_idx)
-      state.tile_versions[mode_idx].SetSolidColorForTesting(true);
-    DCHECK(tile->IsReadyToDraw());
+    SetTileReady(tile);
   }
 }
 
+void FakePictureLayerImpl::SetTileReady(Tile* tile) {
+  ManagedTileState& state = tile->managed_state();
+  for (size_t mode_idx = 0; mode_idx < NUM_RASTER_MODES; ++mode_idx)
+    state.tile_versions[mode_idx].SetSolidColorForTesting(true);
+  DCHECK(tile->IsReadyToDraw());
+}
+
 void FakePictureLayerImpl::CreateDefaultTilingsAndTiles() {
   layer_tree_impl()->UpdateDrawProperties();