auto merge of #5335 : nnethercote/servo/profile-crate, r=glennw

- Most of util::memory has been moved into profile::mem, though the
  `SizeOf` trait and related things remain in util::memory. The
  `SystemMemoryReporter` code is now in a submodule
  profile::mem::system_reporter.

- util::time has been moved entirely into profile::time.

components/script/Cargo.toml

@@ -24,6 +24,9 @@ path = "../msg"
 [dependencies.net]
 path = "../net"
 
+[dependencies.profile]
+path = "../profile"
+
 [dependencies.script_traits]
 path = "../script_traits"
 

components/script/layout_interface.rs

@@ -10,16 +10,16 @@ use dom::node::LayoutData;
 
 use geom::point::Point2D;
 use geom::rect::Rect;
-use script_traits::{ScriptControlChan, OpaqueScriptLayoutChannel, UntrustedNodeAddress};
 use msg::constellation_msg::{PipelineExitType, WindowSizeData};
-use util::geometry::Au;
-use util::memory::{MemoryReporter, MemoryReportsChan};
+use profile::mem::{MemoryReporter, MemoryReportsChan};
+use script_traits::{ScriptControlChan, OpaqueScriptLayoutChannel, UntrustedNodeAddress};
 use std::any::Any;
 use std::sync::mpsc::{channel, Receiver, Sender};
 use std::boxed::BoxAny;
 use style::stylesheets::Stylesheet;
 use style::media_queries::MediaQueryList;
 use url::Url;
+use util::geometry::Au;
 
 pub use dom::node::TrustedNodeAddress;
 

components/script/lib.rs

@@ -43,6 +43,7 @@ extern crate net;
 extern crate "rustc-serialize" as rustc_serialize;
 extern crate time;
 extern crate canvas;
+extern crate profile;
 extern crate script_traits;
 extern crate selectors;
 extern crate util;