Revert of "Converted LayerImpl::bounds() to return SizeF."

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 8eb8f8825689553594aa1b036f5594a6bd260727..de176c30d5f69069bb070bb5ae12ef7c1478d8ec 100644
--- a/cc/layers/picture_layer_impl.cc
+++ b/cc/layers/picture_layer_impl.cc
@@ -732,10 +732,7 @@ void PictureLayerImpl::SyncFromActiveLayer(const PictureLayerImpl* other) {
   bool synced_high_res_tiling = false;
   if (CanHaveTilings()) {
     synced_high_res_tiling = tilings_->SyncTilings(
-        *other->tilings_,
-        gfx::ToCeiledSize(bounds()),
-        invalidation_,
-        MinimumContentsScale());
+        *other->tilings_, bounds(), invalidation_, MinimumContentsScale());
   } else {
     RemoveAllTilings();
   }
@@ -953,8 +950,7 @@ void PictureLayerImpl::DoPostCommitInitialization() {
   DCHECK(layer_tree_impl()->IsPendingTree());
 
   if (!tilings_)
-    tilings_.reset(new PictureLayerTilingSet(this,
-                                             gfx::ToCeiledSize(bounds())));
+    tilings_.reset(new PictureLayerTilingSet(this, bounds()));
 
   DCHECK(!twin_layer_);
   twin_layer_ = static_cast<PictureLayerImpl*>(
@@ -1295,7 +1291,7 @@ float PictureLayerImpl::MinimumContentsScale() const {
   // then it will end up having less than one pixel of content in that
   // dimension.  Bump the minimum contents scale up in this case to prevent
   // this from happening.
-  float min_dimension = std::min(bounds().width(), bounds().height());
+  int min_dimension = std::min(bounds().width(), bounds().height());
   if (!min_dimension)
     return setting_min;