Auto merge of #10255 - mbrubeck:box-unscanned, r=pcwalton

Reduce size of layout::fragment::Fragment struct

This reduces the size of the SpecificFragmentInfo enum from 48 to 24.

r? @pcwalton

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components/servo/Cargo.lock

@@ -22,6 +22,7 @@ dependencies = [
  "ipc-channel 0.2.1 (git+https://github.com/servo/ipc-channel)",
  "layers 0.2.4 (git+https://github.com/servo/rust-layers)",
  "layout 0.0.1",
+ "layout_tests 0.0.1",
  "libc 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
@@ -1083,6 +1084,13 @@ dependencies = [
  "webrender_traits 0.1.0 (git+https://github.com/servo/webrender_traits)",
 ]
 
+[[package]]
+name = "layout_tests"
+version = "0.0.1"
+dependencies = [
+ "layout 0.0.1",
+]
+
 [[package]]
 name = "layout_traits"
 version = "0.0.1"

components/servo/Cargo.toml

@@ -24,6 +24,9 @@ image = "0.7"
 [dev-dependencies.gfx_tests]
 path = "../../tests/unit/gfx"
 
+[dev-dependencies.layout_tests]
+path = "../../tests/unit/layout"
+
 [dev-dependencies.net_tests]
 path = "../../tests/unit/net"