Reenable WebNavigationApiTest.Crash on Windows

The reason for the timeouts on this test are believed to be understood
and resolved in crrev.com/c/2209755  so it's time to try reenabling the
test.

Bug: 974787
Change-Id: I17e587da4446beb352ceeeac09d7fd1e0cfb5f2f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2459788
Commit-Queue: Nasko Oskov <nasko@chromium.org>
Reviewed-by: Nasko Oskov <nasko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815145}

chrome/browser/extensions/api/web_navigation/web_navigation_apitest.cc

@@ -521,13 +521,7 @@ IN_PROC_BROWSER_TEST_F(WebNavigationApiTest, PendingDeletion) {
   ASSERT_TRUE(RunExtensionTest("webnavigation/pendingDeletion")) << message_;
 }
 
-// Flaky fails on Win7 Tests (dbg)(1); https://crbug.com/974787.
-#if defined(OS_WIN) && !defined(NDEBUG)
-#define MAYBE_Crash DISABLED_Crash
-#else
-#define MAYBE_Crash Crash
-#endif
-IN_PROC_BROWSER_TEST_F(WebNavigationApiTest, MAYBE_Crash) {
+IN_PROC_BROWSER_TEST_F(WebNavigationApiTest, Crash) {
   content::ScopedAllowRendererCrashes scoped_allow_renderer_crashes;
   ASSERT_TRUE(StartEmbeddedTestServer());