Disables flaky test.

chrome/browser/extensions/web_view_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/automation/automation_util.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/extensions/platform_app_browsertest_util.h"
 #include "chrome/browser/prerender/prerender_link_manager.h"
@@ skipping 827 matching lines @@
   ASSERT_TRUE(done_test_listener.WaitUntilSatisfied());
 }
 
 // Disabled for being flaky: http://crbug.com/237985
 IN_PROC_BROWSER_TEST_F(WebViewTest, DISABLED_MediaAccessAPIDeny) {
   ASSERT_TRUE(StartTestServer());  // For serving guest pages.
   ASSERT_TRUE(RunPlatformAppTest(
       "platform_apps/web_view/media_access/deny")) << message_;
 }
 
-IN_PROC_BROWSER_TEST_F(WebViewTest, MediaAccessAPIAllow) {
+// Disabled for being flaky: http://crbug.com/238662
+#if defined(OS_CHROMEOS)
+#define MAYBE_MediaAccessAPIAllow DISABLED_MediaAccessAPIAllow
+#else
+#define MAYBE_MediaAccessAPIAllow MediaAccessAPIAllow
+#endif
+IN_PROC_BROWSER_TEST_F(WebViewTest, MAYBE_MediaAccessAPIAllow) {
   ASSERT_TRUE(StartTestServer());  // For serving guest pages.
   ExtensionTestMessageListener launched_listener("Launched", false);
   LoadAndLaunchPlatformApp("web_view/media_access/allow");
   ASSERT_TRUE(launched_listener.WaitUntilSatisfied());
 
   content::WebContents* embedder_web_contents =
       GetFirstShellWindowWebContents();
   ASSERT_TRUE(embedder_web_contents);
   MockWebContentsDelegate* mock = new MockWebContentsDelegate;
   embedder_web_contents->SetDelegate(mock);
@@ skipping 142 matching lines @@
   EXPECT_TRUE(content::ExecuteScript(guest_web_contents,
                                      "startDownload('download-link-2')"));
   mock_delegate->WaitForCanDownload(true); // Expect to allow.
   mock_delegate->Reset();
 
   // 3. Guest requests a download that its embedder ignores, this implies deny.
   EXPECT_TRUE(content::ExecuteScript(guest_web_contents,
                                      "startDownload('download-link-3')"));
   mock_delegate->WaitForCanDownload(false); // Expect to not allow.
 }