Rename Runnable to Task

The changes are:
 * `*Runnable` -> `*Task`;
 * `RunnableMsg` -> `Task`;
 * `RunnableWrapper` -> `TaskCanceller`;
 * `MainThreadRunnable` -> `MainThreadTask`;
 * `wrap_runnable` -> `wrap_task`;
 * `get_runnable_wrapper` -> `task_canceller`;
 * `handler` -> `run`;
 * `main_thread_handler` -> `run_with_script_thread`.

1 files changed, 4 insertions, 4 deletions

diff --git a/components/script/script_runtime.rs b/components/script/script_runtime.rs
index d0473d2469c..b12649668e5 100644
--- a/components/script/script_runtime.rs
+++ b/components/script/script_runtime.rs
@@ -23,7 +23,7 @@ use js::panic::wrap_panic;
 use js::rust::Runtime;
 use microtask::{EnqueuedPromiseCallback, Microtask};
 use profile_traits::mem::{Report, ReportKind, ReportsChan};
-use script_thread::{Runnable, STACK_ROOTS, trace_thread};
+use script_thread::{STACK_ROOTS, Task, trace_thread};
 use servo_config::opts;
 use servo_config::prefs::PREFS;
 use std::cell::Cell;
@@ -43,15 +43,15 @@ pub enum CommonScriptMsg {
     /// supplied channel.
     CollectReports(ReportsChan),
     /// Generic message that encapsulates event handling.
-    RunnableMsg(ScriptThreadEventCategory, Box<Runnable + Send>),
+    Task(ScriptThreadEventCategory, Box<Task + Send>),
 }
 
 impl fmt::Debug for CommonScriptMsg {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match *self {
             CommonScriptMsg::CollectReports(_) => write!(f, "CollectReports(...)"),
-            CommonScriptMsg::RunnableMsg(ref category, ref runnable) => {
-                f.debug_tuple("RunnableMsg").field(category).field(runnable).finish()
+            CommonScriptMsg::Task(ref category, ref task) => {
+                f.debug_tuple("Task").field(category).field(task).finish()
             },
         }
     }