Update branch name to main (#30877)

CONTRIBUTING.md

@@ -27,9 +27,9 @@ on how to start working on Servo.
 
 ## Pull request checklist
 
-- Branch from the master branch and, if needed, rebase to the current master
+- Branch from the main branch and, if needed, rebase to the current main branch
-  branch before submitting your pull request. If it doesn't merge cleanly with
+  before submitting your pull request. If it doesn't merge cleanly with main
-  master you may be asked to rebase your changes.
+  you may be asked to rebase your changes.
 
 - Commits should be as small as possible, while ensuring that each commit is
   correct independently (i.e., each commit should compile and pass tests). 
@@ -74,5 +74,5 @@ Servo contributors frequent the [Servo Zulip chat](https://servo.zulipchat.com/)
 ## Technical Steering Committee
 
 Technical oversight of the Servo Project is provided by the
-[Technical Steering Committee](https://github.com/servo/project/blob/master/governance/tsc/README.md).
+[Technical Steering Committee](https://github.com/servo/project/blob/main/governance/tsc/README.md).
 

README.md

@@ -78,7 +78,7 @@ The examples below will use Unix, but the same applies to Windows.
 
 Servo's build system uses rustup.rs to automatically download a Rust compiler.
 This is a specific version of Rust Nightly determined by the
-[`rust-toolchain.toml`](https://github.com/servo/servo/blob/master/rust-toolchain.toml) file.
+[`rust-toolchain.toml`](https://github.com/servo/servo/blob/main/rust-toolchain.toml) file.
 
 ### Normal build
 

components/script/docs/JS-Servos-only-GC.md

@@ -134,7 +134,7 @@ or a custom attribute `#[dom_struct]` which implies it.
 Let's look at [Servo's implementation][document-rs] of the DOM's
 [`Document`][document-mdn] interface:
 
-[document-rs]: https://github.com/servo/servo/blob/master/components/script/dom/document.rs
+[document-rs]: https://github.com/servo/servo/blob/main/components/script/dom/document.rs
 [document-mdn]: https://developer.mozilla.org/en-US/docs/Web/API/document
 
 ```rust

components/style/README.md

@@ -3,4 +3,4 @@ servo-style
 
 Style system for Servo, using [rust-cssparser](https://github.com/servo/rust-cssparser) for parsing.
 
- * [Documentation](https://github.com/servo/servo/blob/master/docs/components/style.md).
+ * [Documentation](https://github.com/servo/servo/blob/main/docs/components/style.md).

docs/HACKING_QUICKSTART.md

@@ -357,7 +357,7 @@ In some cases, extensive tests for the feature you're working on already exist u
 
 - Make a release build
 - run `./mach test-wpt --release --log-raw=/path/to/some/logfile`
-- run [`update-wpt` on it](https://github.com/servo/servo/blob/master/tests/wpt/README.md#updating-test-expectations)
+- run [`update-wpt` on it](https://github.com/servo/servo/blob/main/tests/wpt/README.md#updating-test-expectations)
 
 This may create a new commit with changes to expectation ini files. If there are lots of changes,
 it's likely that your feature had tests in wpt already.

docs/components/style.md

@@ -148,6 +148,6 @@ that you didn't find it here so it can be added :)
 [selectors-rule]: https://doc.servo.org/style/stylist/struct.Rule.html
 [per-pseudo-selectormap]: https://doc.servo.org/style/selector_parser/struct.PerPseudoElementMap.html
 [per-origin-selectormap]: https://doc.servo.org/style/stylist/struct.PerOriginSelectorMap.html
-[docs-pipeline]: https://github.com/servo/servo/blob/master/docs/glossary.md#pipeline
+[docs-pipeline]: https://github.com/servo/servo/blob/main/docs/glossary.md#pipeline
 [properties-module]: https://doc.servo.org/style/properties/index.html
 [properties-cascade-fn]: https://doc.servo.org/style/properties/fn.cascade.html

etc/doc.servo.org/README.md

@@ -1,6 +1,6 @@
-[doc.servo.org](https://doc.servo.org)
+[doc.servo.org](https://doc.servo.org/)
 =====================================
 
 The Servo documentation.
-This is generated automatically at every push to the `master` branch
+This is generated automatically at every push to the `main` branch of
-of [Servo’s repository](https://github.com/servo/servo/).
+[Servo’s repository](https://github.com/servo/servo).

etc/layout_viewer/viewer.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!DOCTYPE html>
 <html lang="en">
     <head>
         <meta charset="utf-8">
@@ -28,7 +28,7 @@
             <div class="row">
                 <div class="col-sm-12">
                   <h1> Servo Layout Viewer </h1>
-                  <p> Check the <a href="https://github.com/servo/servo/blob/master/etc/layout_viewer/README.md">README</a> for instructions.</p>
+                  <p> Check the <a href="https://github.com/servo/servo/blob/main/etc/layout_viewer/README">README</a> for instructions.</p>
                 </div>
             </div>
             <div class="row">

etc/layout_viewer/viewer_2020.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!DOCTYPE html>
 <html lang="en">
   <head>
     <meta charset="utf-8" />
@@ -31,7 +31,7 @@
           <p>
             Check the
             <a
-              href="https://github.com/servo/servo/blob/master/etc/layout_viewer/README.md"
+              href="https://github.com/servo/servo/blob/main/etc/layout_viewer/README"
               >README</a
             >
             for instructions.

etc/profilicate.py

@@ -13,9 +13,9 @@
 # output a [processed profile]. Based largely on [this script] and
 # [this documentation].
 #
-# [processed profile]: https://github.com/firefox-devtools/profiler/blob/master/docs-developer/processed-profile-format.md
+# [processed profile]: https://github.com/firefox-devtools/profiler/blob/main/docs-developer/processed-profile-format.md
-# [this script]: https://github.com/firefox-devtools/profiler/blob/master/src/profile-logic/import/linux-perf.js
+# [this script]: https://github.com/firefox-devtools/profiler/blob/main/src/profile-logic/import/linux-perf.js
-# [this documentation]: https://github.com/firefox-devtools/profiler/blob/master/src/types/profile.js
+# [this documentation]: https://github.com/firefox-devtools/profiler/blob/main/src/types/profile.js
 
 from collections import defaultdict
 import json