devtools: Fix id collisions by using incrementing counters (#35971)

Devtools clients need a `browserId`, `browsingContextID`, and
`outerWindowID`, which correspond to WebViewId, BrowsingContextId, and
PipelineId in Servo. These u32 values were previously derived from our
sharded (u32,u32) id values by taking only the `index` (second u32) and
ignoring the `namespace_id` (first u32), leading to collisions.

This patch fixes that by mapping those Servo ids to sequential u32
values.

---
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---------

Signed-off-by: Delan Azabani <dazabani@igalia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/python/servo/testing_commands.py b/python/servo/testing_commands.py
index 2094147df83..b19b4920336 100644
--- a/python/servo/testing_commands.py
+++ b/python/servo/testing_commands.py
@@ -163,6 +163,7 @@ class MachCommands(CommandBase):
             "background_hang_monitor",
             "base",
             "constellation",
+            "devtools",
             "fonts",
             "hyper_serde",
             "layout_2020",