Bug 1755600 - Add a meta viewport tag to image-compositing-large-scale-change.html to avoid auto scaling down. r=tnikkel

With enabling apz.allow_zooming, both test and reference contents are scaled down on mobile environments but the scaled size is different because the content width is different. Differential Revision: https://phabricator.services.mozilla.com/D138874
2022-02-16 06:42:40 +00:00 · 2022-02-16 06:42:40 +00:00 · 0816f1644d
--- a/testing/web-platform/meta/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html.ini
+++ b/testing/web-platform/meta/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change.html.ini
@ -1,3 +1,2 @@
 [image-compositing-large-scale-change.html]
-  expected:
-    if (os == "android"): ["PASS", "TIMEOUT"]
+  prefs: [apz.allow_zooming:true]
--- a/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change-ref.html
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/image-compositing-large-scale-change-ref.html
@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <html>
+<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1">
 <style>
 html { overflow: hidden; }
 #change {