Revert of Mark 3 tests flaky on android

content/browser/security_exploit_browsertest.cc

Index: content/browser/security_exploit_browsertest.cc
diff --git a/content/browser/security_exploit_browsertest.cc b/content/browser/security_exploit_browsertest.cc
index 5eb0339758ce3fe6397c377ca35c7a9bc7506e83..bedf5b884ca53b1cb0dda0f6a2e7b6695d11ed40 100644
--- a/content/browser/security_exploit_browsertest.cc
+++ b/content/browser/security_exploit_browsertest.cc
@@ -253,21 +253,13 @@
   terminated.Wait();
 }
 
-#if defined(OS_ANDROID)
-// Flaky on android: https://crbug.com/703657
-#define MAYBE_AttemptDuplicateRenderViewHost \
-  DISABLED_AttemptDuplicateRenderViewHost
-#else
-#define MAYBE_AttemptDuplicateRenderViewHost AttemptDuplicateRenderViewHost
-#endif
-
 // This is a test for crbug.com/312016 attempting to create duplicate
 // RenderViewHosts. SetupForDuplicateHosts sets up this test case and leaves
 // it in a state with pending RenderViewHost. Before the commit of the new
 // pending RenderViewHost, this test case creates a new window through the new
 // process.
 IN_PROC_BROWSER_TEST_F(SecurityExploitBrowserTest,
-                       MAYBE_AttemptDuplicateRenderViewHost) {
+                       AttemptDuplicateRenderViewHost) {
   int32_t duplicate_routing_id = MSG_ROUTING_NONE;
   RenderViewHostImpl* pending_rvh =
       PrepareToDuplicateHosts(shell(), &duplicate_routing_id);
@@ -297,19 +289,11 @@
   // If the above operation doesn't cause a crash, the test has succeeded!
 }
 
-#if defined(OS_ANDROID)
-// Flaky on android: https://crbug.com/703657
-#define MAYBE_AttemptDuplicateRenderWidgetHost \
-  DISABLED_AttemptDuplicateRenderWidgetHost
-#else
-#define MAYBE_AttemptDuplicateRenderWidgetHost AttemptDuplicateRenderWidgetHost
-#endif
-
 // This is a test for crbug.com/312016. It tries to create two RenderWidgetHosts
 // with the same process and routing ids, which causes a collision. It is almost
 // identical to the AttemptDuplicateRenderViewHost test case.
 IN_PROC_BROWSER_TEST_F(SecurityExploitBrowserTest,
-                       MAYBE_AttemptDuplicateRenderWidgetHost) {
+                       AttemptDuplicateRenderWidgetHost) {
 #if defined(OS_WIN)
   // PlzNavigate
   // This test is failing in a flaky manner on Android as it appears to be