Remove dependency on time

malloc_size_of/Cargo.toml

@@ -19,7 +19,6 @@ servo = [
     "serde",
     "serde_bytes",
     "string_cache",
-    "time",
     "url",
     "uuid",
     "webrender_api",
@@ -46,7 +45,6 @@ smallbitvec = "2.3.0"
 smallvec = "1.13"
 string_cache = { version = "0.8", optional = true }
 thin-vec = { version = "0.2.13" }
-time = { version = "0.1.41", optional = true }
 tokio = { version = "1", features = ["sync"] }
 url = { version = "2.5", features = ["serde"], optional = true }
 uuid = { version = "1.7.0", optional = true }

malloc_size_of/lib.rs

@@ -69,8 +69,6 @@ extern crate smallbitvec;
 extern crate smallvec;
 #[cfg(feature = "servo")]
 extern crate string_cache;
-#[cfg(feature = "servo")]
-extern crate time;
 #[cfg(feature = "url")]
 extern crate url;
 #[cfg(feature = "servo")]
@@ -945,10 +943,6 @@ impl MallocSizeOf for xml5ever::QualName {
     }
 }
 
-#[cfg(feature = "servo")]
-malloc_size_of_is_0!(time::Duration);
-#[cfg(feature = "servo")]
-malloc_size_of_is_0!(time::Tm);
 #[cfg(feature = "servo")]
 malloc_size_of_is_0!(std::time::Duration);
 #[cfg(feature = "servo")]

style/Cargo.toml

@@ -93,7 +93,6 @@ style_derive = {path = "../style_derive"}
 style_traits = {path = "../style_traits"}
 to_shmem = {path = "../to_shmem"}
 to_shmem_derive = {path = "../to_shmem_derive"}
-time = "0.1"
 thin-vec = "0.2.1"
 uluru = "3.0"
 unicode-bidi = { version = "0.3", default-features = false }

style/context.rs

@@ -37,6 +37,7 @@ use servo_arc::Arc;
 use servo_atoms::Atom;
 use std::fmt;
 use std::ops;
+use std::time::{Duration, Instant};
 use style_traits::CSSPixel;
 use style_traits::DevicePixel;
 #[cfg(feature = "servo")]
@@ -306,7 +307,7 @@ pub struct TraversalStatistics {
     /// The number of times the stylist was rebuilt.
     pub stylist_rebuilds: u32,
     /// Time spent in the traversal, in milliseconds.
-    pub traversal_time_ms: f64,
+    pub traversal_time: Duration,
     /// Whether this was a parallel traversal.
     pub is_parallel: bool,
     /// Whether this is a "large" traversal.
@@ -317,10 +318,6 @@ pub struct TraversalStatistics {
 /// See https://bugzilla.mozilla.org/show_bug.cgi?id=1331856#c2
 impl fmt::Display for TraversalStatistics {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        debug_assert!(
-            self.traversal_time_ms != 0.0,
-            "should have set traversal time"
-        );
         writeln!(f, "[PERF] perf block start")?;
         writeln!(
             f,
@@ -361,7 +358,7 @@ impl fmt::Display for TraversalStatistics {
         )?;
         writeln!(f, "[PERF],declarations,{}", self.declarations)?;
         writeln!(f, "[PERF],stylist_rebuilds,{}", self.stylist_rebuilds)?;
-        writeln!(f, "[PERF],traversal_time_ms,{}", self.traversal_time_ms)?;
+        writeln!(f, "[PERF],traversal_time_ms,{}", self.traversal_time.as_secs_f64() * 1000.)?;
         writeln!(f, "[PERF] perf block end")
     }
 }
@@ -374,7 +371,7 @@ impl TraversalStatistics {
         aggregated: PerThreadTraversalStatistics,
         traversal: &D,
         parallel: bool,
-        start: f64,
+        start: Instant,
     ) -> TraversalStatistics
     where
         E: TElement,
@@ -393,7 +390,7 @@ impl TraversalStatistics {
             dependency_selectors: stylist.num_invalidations() as u32,
             declarations: stylist.num_declarations() as u32,
             stylist_rebuilds: stylist.num_rebuilds() as u32,
-            traversal_time_ms: (time::precise_time_s() - start) * 1000.0,
+            traversal_time: Instant::now() - start,
             is_parallel: parallel,
             is_large,
         }

style/driver.rs

@@ -14,6 +14,7 @@ use crate::parallel;
 use crate::scoped_tls::ScopedTLS;
 use crate::traversal::{DomTraversal, PerLevelTraversalData, PreTraverseToken};
 use std::collections::VecDeque;
+use std::time::Instant;
 
 #[cfg(feature = "servo")]
 fn should_report_statistics() -> bool {
@@ -102,7 +103,7 @@ where
     let report_stats = should_report_statistics();
     let dump_stats = traversal.shared_context().options.dump_style_statistics;
     let start_time = if dump_stats {
-        Some(time::precise_time_s())
+        Some(Instant::now())
     } else {
         None
     };