Disable ProcessManagerBrowserTest.FrameClassification due to flake.

chrome/browser/extensions/process_manager_browsertest.cc

 // Copyright 2013 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 <stddef.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/callback.h"
@@ skipping 424 matching lines @@
       browser(), extension_url, WindowOpenDisposition::NEW_FOREGROUND_TAB,
       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
   EXPECT_EQ(1u, pm->GetRenderFrameHostsForExtension(extension->id()).size());
 }
 
 // Tests whether frames are correctly classified. Non-extension frames should
 // never appear in the list. Top-level extension frames should always appear.
 // Child extension frames should only appear if it is hosted in an extension
 // process (i.e. if the top-level frame is an extension page, or if OOP frames
 // are enabled for extensions).
-IN_PROC_BROWSER_TEST_F(ProcessManagerBrowserTest, FrameClassification) {
+// Disabled due to flake: https://crbug.com/693287.
+IN_PROC_BROWSER_TEST_F(ProcessManagerBrowserTest,
+                       DISABLED_FrameClassification) {
   const Extension* extension1 = CreateExtension("Extension 1", false);
   const Extension* extension2 = CreateExtension("Extension 2", true);
   embedded_test_server()->ServeFilesFromDirectory(extension1->path());
   ASSERT_TRUE(embedded_test_server()->Start());
 
   const GURL kExt1TwoFramesUrl(extension1->url().Resolve("two_iframes.html"));
   const GURL kExt1EmptyUrl(extension1->url().Resolve("empty.html"));
   const GURL kExt2TwoFramesUrl(extension2->url().Resolve("two_iframes.html"));
   const GURL kExt2EmptyUrl(extension2->url().Resolve("empty.html"));
 
@@ skipping 707 matching lines @@
   EXPECT_TRUE(ExecuteScriptAndExtractBool(
       popup, "window.domAutomationController.send(!!window.opener)",
       &is_opener_defined));
   EXPECT_TRUE(is_opener_defined);
 
   // Verify that postMessage to window.opener works.
   VerifyPostMessageToOpener(popup->GetMainFrame(), extension_frame);
 }
 
 }  // namespace extensions