AW: re-enable flaky test

No change to logic. This re-enables a test which was marked as flaky.
This passed 1000 local runs, so it appears it's no longer flaky.

Bug: 984705
Test: run_webview_instrumentation_test_apk --num_retries=0 \
Test: --break-on-failure --repeat=1000 \
Test: -f SafeBrowsingTest#testSafeBrowsingProceedThroughInterstitialForSubresource
Change-Id: I48bb6dbbeb1fa96f62d43da74de2a34255f2b3d5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1911150
Auto-Submit: Nate Fischer <ntfschr@chromium.org>
Commit-Queue: Shimi Zhang <ctzsm@chromium.org>
Reviewed-by: Shimi Zhang <ctzsm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#715445}

android_webview/javatests/src/org/chromium/android_webview/test/SafeBrowsingTest.java

@@ -47,7 +47,6 @@ import org.chromium.base.task.PostTask;
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.Feature;
-import org.chromium.base.test.util.FlakyTest;
 import org.chromium.base.test.util.InMemorySharedPreferences;
 import org.chromium.components.safe_browsing.SafeBrowsingApiBridge;
 import org.chromium.components.safe_browsing.SafeBrowsingApiHandler;
@@ -658,7 +657,6 @@ public class SafeBrowsingTest {
     }
 
     @Test
-    @FlakyTest(message = "crbug.com/984705")
     @SmallTest
     @Feature({"AndroidWebView"})
     public void testSafeBrowsingProceedThroughInterstitialForSubresource() throws Throwable {