Issue mozilla-mobile#9899: (Merge day) browser-engine-gecko-nightly -> 89

Author: pocmo

buildSrc/src/main/java/Gecko.kt

@@ -6,7 +6,7 @@ internal object GeckoVersions {
     /**
      * GeckoView Nightly Version.
      */
-    const val nightly_version = "88.0.20210322093509"
+    const val nightly_version = "89.0.20210323094659"
 
     /**
      * GeckoView Beta Version.

components/browser/engine-gecko-nightly/docs/metrics.md

@@ -91,6 +91,7 @@ In addition to those built-in metrics, the following metrics are added to the pi
 | network.tcp_connection |[timing_distribution](https://mozilla.github.io/glean/book/user/metrics/timing_distribution.html) |In the HTTP page channel, time from the TCP SYN packet is received to the connection is established and ready for HTTP.  |[Bug 1580077](https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10)||never | |
 | network.tls_handshake |[timing_distribution](https://mozilla.github.io/glean/book/user/metrics/timing_distribution.html) |In the HTTP page channel, time from after the TCP SYN packet is received to the secure connection is established and ready for HTTP.  |[Bug 1580077](https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10)||never | |
 | performance.interaction.keypress_present_latency |[timing_distribution](https://mozilla.github.io/glean/book/user/metrics/timing_distribution.html) |Time between receiving a keypress event in the event loop and compositing its result onto the screen.  |[Bug 1580077](https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10)||never | |
+| performance.interaction.mouseup_click_present_latency |[timing_distribution](https://mozilla.github.io/glean/book/user/metrics/timing_distribution.html) |Time between receiving a mouseup which follow by a mouseclick on the event loop and compositing its result onto the screen.  |[Bug 1698643](https://bugzilla.mozilla.org/show_bug.cgi?id=1698643#c3)||never | |
 | performance.interaction.tab_switch_composite |[timing_distribution](https://mozilla.github.io/glean/book/user/metrics/timing_distribution.html) |Time between tab selection and first composite of the tab content onto the screen.  |[Bug 1580077](https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10)||never | |
 | performance.page.non_blank_paint |[timing_distribution](https://mozilla.github.io/glean/book/user/metrics/timing_distribution.html) |The time between navigationStart and the first non-blank paint of a foreground root content document, in milliseconds. This only records documents that were in an active docshell throughout the whole time between navigation start and non-blank paint. The non-blank paint timestamp is taken during display list building and does not include rasterization or compositing of that paint.  |[Bug 1580077](https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10)||never | |
 | performance.page.total_content_page_load |[timing_distribution](https://mozilla.github.io/glean/book/user/metrics/timing_distribution.html) |Time to load all of a page's resources and render.  |[Bug 1580077](https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10)||never | |