[Fuchsia] Add shards for web_engine_integration_tests on code coverage builder

Need more shards to prevent OOM now that we're collecting coverage
data on subprocesses as well

Bug: 1197272
Change-Id: I0a9a488c0f636cdb58812b094fded37498f8215a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2934184
Auto-Submit: Chong Gu <[email protected]>
Reviewed-by: Brian Sheedy <[email protected]>
Commit-Queue: Brian Sheedy <[email protected]>
Cr-Commit-Position: refs/heads/master@{#888542}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index ffc017f..7da90af 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -3142,6 +3142,15 @@
       },
     },
   },
+  'web_engine_integration_tests': {
+    'modifications': {
+      'fuchsia-code-coverage': {
+        'swarming': {
+          'shards': 6,
+        },
+      },
+    },
+  },
   'webdriver_tests_suite': {
     'remove_from': [
       'Linux Tests',  # https://crbug.com/929689, https://crbug.com/936557