Differential D24521 Diff 70845 mail/thunderbird/files/patch-bug1580963

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mail/thunderbird/files/patch-bug1580963

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				From 7617a0e6fe2bb7afab6ffda49fc8cd9eca2f035b Mon Sep 17 00:00:00 2001
				From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
				Date: Thu, 12 Sep 2019 21:09:27 +0000
				Subject: [PATCH] Bug 1580963 - Cherry-pick some servo changes from a rustc
				upgrade.

				This cherry-picks from Servo commit 98e4a53b724.

				Differential Revision: https://phabricator.services.mozilla.com/D45738

				--HG--
				extra : moz-landing-system : lando
				---
				.../style/stylesheets/viewport_rule.rs \| 23 +++++++++++++------
				1 file changed, 16 insertions(+), 7 deletions(-)

				diff --git a/servo/components/style/stylesheets/viewport_rule.rs b/servo/components/style/stylesheets/viewport_rule.rs
				index 8cc858f7a7f69..7d0881e3336a9 100644
				--- servo/components/style/stylesheets/viewport_rule.rs
				+++ servo/components/style/stylesheets/viewport_rule.rs
				@@ -291,15 +291,18 @@ impl<'a, 'b, 'i> DeclarationParser<'i> for ViewportRuleParser<'a, 'b> {
				) -> Result<Vec<ViewportDescriptorDeclaration>, ParseError<'i>> {
				macro_rules! declaration {
				($declaration:ident($parse:expr)) => {
				- declaration!($declaration(value: try!($parse(input)),
				- important: input.try(parse_important).is_ok()))
				+ declaration!($declaration {
				+ value: $parse(input)?,
				+ important: input.try(parse_important).is_ok(),
				+ })
				};
				- ($declaration:ident(value: $value:expr, important: $important:expr)) => {
				+ ($declaration:ident { value: $value:expr, important: $important:expr, }) => {
				ViewportDescriptorDeclaration::new(
				self.context.stylesheet_origin,
				ViewportDescriptor::$declaration($value),
				- $important)
				- }
				+ $important,
				+ )
				+ };
				}

				macro_rules! ok {
				@@ -311,8 +314,14 @@ impl<'a, 'b, 'i> DeclarationParser<'i> for ViewportRuleParser<'a, 'b> {
				let important = input.try(parse_important).is_ok();

				Ok(vec![
				- declaration!($min(value: shorthand.0, important: important)),
				- declaration!($max(value: shorthand.1, important: important)),
				+ declaration!($min {
				+ value: shorthand.0,
				+ important: important,
				+ }),
				+ declaration!($max {
				+ value: shorthand.1,
				+ important: important,
				+ }),
				])
				}};
				}