Stop running AwStrictModeTest when jacoco is enabled

jacoco (Java code coverage tool) requires turning off strict mode
since it writes the coverage data to files.

AwStrictModeTest enables strict mode and therefore it currently
causes strict mode violation (in a flaky way).

Unfortunately, we are disabling this in one of the main tryservers
(android-marshmallow-arm64-rel) which enables jacoco, but
android-pie-arm64-rel in CQ and 5 other bots run this
continuously, and such violations will be locally reproducible.

        test can be run, check tryserver result

Bug: 1021403, 1045270
Tested: change use_jacoco_coverage value in build gn and see if
Change-Id: I95b41f82906f6d7f0ec32a353203928f831079a7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2029327Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Nate Fischer <ntfschr@chromium.org>
Commit-Queue: Changwan Ryu <changwan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#736988}

android_webview/test/BUILD.gn

@@ -234,7 +234,6 @@ instrumentation_test_apk("webview_instrumentation_test_apk") {
     "../javatests/src/org/chromium/android_webview/test/AwSecondBrowserProcessTest.java",
     "../javatests/src/org/chromium/android_webview/test/AwServiceWorkerClientTest.java",
     "../javatests/src/org/chromium/android_webview/test/AwSettingsTest.java",
-    "../javatests/src/org/chromium/android_webview/test/AwStrictModeTest.java",
     "../javatests/src/org/chromium/android_webview/test/AwUncaughtExceptionTest.java",
     "../javatests/src/org/chromium/android_webview/test/AwVariationsSeedFetcherTest.java",
     "../javatests/src/org/chromium/android_webview/test/AwWebContentsObserverTest.java",
@@ -308,6 +307,11 @@ instrumentation_test_apk("webview_instrumentation_test_apk") {
     "../javatests/src/org/chromium/android_webview/test/util/VideoTestUtil.java",
     "../javatests/src/org/chromium/android_webview/test/util/VideoTestWebServer.java",
   ]
+
+  if (!use_jacoco_coverage) {
+    # Jacoco requires strict mode to be turned off since it writes coverage data to files.
+    sources += [ "../javatests/src/org/chromium/android_webview/test/AwStrictModeTest.java" ]
+  }
   data = [ "data/" ]
   data_deps =
       [ "//testing/buildbot/filters:webview_instrumentation_test_apk_filters" ]