Move profiler code from util into a new crate profile.

- 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/compositing/Cargo.toml

@@ -22,6 +22,9 @@ path = "../msg"
 [dependencies.net]
 path = "../net"
 
+[dependencies.profile]
+path = "../profile"
+
 [dependencies.util]
 path = "../util"
 
@@ -52,4 +55,4 @@ git = "https://github.com/servo/gleam"
 [dependencies]
 url = "0.2.16"
 time = "0.1.17"
-libc = "*"
+libc = "*"

components/compositing/compositor.rs

@@ -11,8 +11,6 @@ use scrolling::ScrollingTimerProxy;
 use windowing;
 use windowing::{MouseWindowEvent, WindowEvent, WindowMethods, WindowNavigateMsg};
 
-use std::cmp;
-use std::mem;
 use geom::point::{Point2D, TypedPoint2D};
 use geom::rect::{Rect, TypedRect};
 use geom::size::{Size2D, TypedSize2D};
@@ -35,20 +33,23 @@ use msg::constellation_msg::{ConstellationChan, NavigationDirection};
 use msg::constellation_msg::Msg as ConstellationMsg;
 use msg::constellation_msg::{Key, KeyModifiers, KeyState, LoadData};
 use msg::constellation_msg::{PipelineId, WindowSizeData};
-use util::geometry::{PagePx, ScreenPx, ViewportPx};
-use util::memory::MemoryProfilerChan;
-use util::opts;
-use util::time::{TimeProfilerCategory, profile, TimeProfilerChan};
-use util::{memory, time};
+use profile::mem;
+use profile::mem::{MemoryProfilerChan};
+use profile::time;
+use profile::time::{TimeProfilerCategory, profile, TimeProfilerChan};
+use std::cmp;
 use std::collections::HashMap;
 use std::collections::hash_map::Entry::{Occupied, Vacant};
 use std::old_path::Path;
+use std::mem::replace;
 use std::num::Float;
 use std::rc::Rc;
 use std::slice::bytes::copy_memory;
 use std::sync::mpsc::Sender;
 use time::{precise_time_ns, precise_time_s};
 use url::Url;
+use util::geometry::{PagePx, ScreenPx, ViewportPx};
+use util::opts;
 
 /// NB: Never block on the constellation, because sometimes the constellation blocks on us.
 pub struct IOCompositor<Window: WindowMethods> {
@@ -869,7 +870,7 @@ impl<Window: WindowMethods> IOCompositor<Window> {
 
     fn process_pending_scroll_events(&mut self) {
         let had_scroll_events = self.pending_scroll_events.len() > 0;
-        for scroll_event in mem::replace(&mut self.pending_scroll_events, Vec::new()).into_iter() {
+        for scroll_event in replace(&mut self.pending_scroll_events, Vec::new()).into_iter() {
             let delta = scroll_event.delta / self.scene.scale;
             let cursor = scroll_event.cursor.as_f32() / self.scene.scale;
 
@@ -1356,7 +1357,7 @@ impl<Window> CompositorEventListener for IOCompositor<Window> where Window: Wind
 
         // Tell the profiler, memory profiler, and scrolling timer to shut down.
         self.time_profiler_chan.send(time::TimeProfilerMsg::Exit);
-        self.memory_profiler_chan.send(memory::MemoryProfilerMsg::Exit);
+        self.memory_profiler_chan.send(mem::MemoryProfilerMsg::Exit);
         self.scrolling_timer.shutdown();
     }
 

components/compositing/compositor_task.rs

@@ -21,13 +21,13 @@ use msg::compositor_msg::{Epoch, LayerId, LayerMetadata, ReadyState};
 use msg::compositor_msg::{PaintListener, PaintState, ScriptListener, ScrollPolicy};
 use msg::constellation_msg::{ConstellationChan, PipelineId};
 use msg::constellation_msg::{Key, KeyState, KeyModifiers};
-use url::Url;
-use util::cursor::Cursor;
-use util::memory::MemoryProfilerChan;
-use util::time::TimeProfilerChan;
+use profile::mem::MemoryProfilerChan;
+use profile::time::TimeProfilerChan;
 use std::sync::mpsc::{channel, Sender, Receiver};
 use std::fmt::{Error, Formatter, Debug};
 use std::rc::Rc;
+use url::Url;
+use util::cursor::Cursor;
 
 /// Sends messages to the compositor. This is a trait supplied by the port because the method used
 /// to communicate with the compositor may have to kick OS event loops awake, communicate cross-

components/compositing/constellation.rs

@@ -25,12 +25,12 @@ use msg::constellation_msg::Msg as ConstellationMsg;
 use net::image_cache_task::{ImageCacheTask, ImageCacheTaskClient};
 use net::resource_task::{self, ResourceTask};
 use net::storage_task::{StorageTask, StorageTaskMsg};
+use profile::mem::MemoryProfilerChan;
+use profile::time::TimeProfilerChan;
 use util::cursor::Cursor;
 use util::geometry::PagePx;
-use util::memory::MemoryProfilerChan;
 use util::opts;
 use util::task::spawn_named;
-use util::time::TimeProfilerChan;
 use std::borrow::ToOwned;
 use std::collections::HashMap;
 use std::old_io as io;

components/compositing/headless.rs

@@ -9,10 +9,10 @@ use geom::scale_factor::ScaleFactor;
 use geom::size::TypedSize2D;
 use msg::constellation_msg::Msg as ConstellationMsg;
 use msg::constellation_msg::{ConstellationChan, WindowSizeData};
-use util::memory::MemoryProfilerChan;
-use util::memory;
-use util::time::TimeProfilerChan;
-use util::time;
+use profile::mem;
+use profile::mem::MemoryProfilerChan;
+use profile::time;
+use profile::time::TimeProfilerChan;
 
 /// Starts the compositor, which listens for messages on the specified port.
 ///
@@ -121,7 +121,7 @@ impl CompositorEventListener for NullCompositor {
         while self.port.try_recv_compositor_msg().is_some() {}
 
         self.time_profiler_chan.send(time::TimeProfilerMsg::Exit);
-        self.memory_profiler_chan.send(memory::MemoryProfilerMsg::Exit);
+        self.memory_profiler_chan.send(mem::MemoryProfilerMsg::Exit);
     }
 
     fn pinch_zoom_level(&self) -> f32 {

components/compositing/lib.rs

@@ -23,6 +23,7 @@ extern crate png;
 extern crate script_traits;
 extern crate msg;
 extern crate net;
+extern crate profile;
 #[macro_use]
 extern crate util;
 extern crate gleam;

components/compositing/pipeline.rs

@@ -19,11 +19,11 @@ use msg::constellation_msg::{LoadData, WindowSizeData, PipelineExitType};
 use net::image_cache_task::ImageCacheTask;
 use net::resource_task::ResourceTask;
 use net::storage_task::StorageTask;
+use profile::mem::MemoryProfilerChan;
+use profile::time::TimeProfilerChan;
+use std::sync::mpsc::{Receiver, channel};
 use url::Url;
 use util::geometry::{PagePx, ViewportPx};
-use util::memory::MemoryProfilerChan;
-use util::time::TimeProfilerChan;
-use std::sync::mpsc::{Receiver, channel};
 
 /// A uniquely-identifiable pipeline of script task, layout task, and paint task.
 pub struct Pipeline {