Disable BrowserTest.InterstitialCloseTab which is flaky.

chrome/browser/ui/browser_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 <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 1961 matching lines @@
                                   loop_runner->QuitClosure());
     interstitial->DontProceed();
     loop_runner->Run();
     // interstitial is deleted now.
   }
 
   // Make sure input events still work in the renderer process.
   EXPECT_FALSE(contents->GetRenderProcessHost()->IgnoreInputEvents());
 }
 
-
-IN_PROC_BROWSER_TEST_F(BrowserTest, InterstitialCloseTab) {
+#if defined(OS_MACOSX)
+// http://crbug.com/393218
+#define MAYBE_InterstitialCloseTab DISABLED_InterstitialCloseTab
+#else
+#define MAYBE_InterstitialCloseTab InterstitialCloseTab
+#endif
+IN_PROC_BROWSER_TEST_F(BrowserTest, MAYBE_InterstitialCloseTab) {
   WebContents* contents = browser()->tab_strip_model()->GetActiveWebContents();
 
   {
     scoped_refptr<content::MessageLoopRunner> loop_runner(
         new content::MessageLoopRunner);
 
     InterstitialObserver observer(contents,
                                   loop_runner->QuitClosure(),
                                   base::Closure());
     // Interstitial will delete itself when we close the tab.
@@ skipping 721 matching lines @@
 #endif
   EXPECT_EQ(exp_commit_size, rwhv_commit_size2);
   EXPECT_EQ(exp_commit_size, wcv_commit_size2);
   gfx::Size exp_final_size(initial_wcv_size);
   exp_final_size.Enlarge(wcv_resize_insets.width(),
                          wcv_resize_insets.height() + height_inset);
   EXPECT_EQ(exp_final_size,
             web_contents->GetRenderWidgetHostView()->GetViewBounds().size());
   EXPECT_EQ(exp_final_size, web_contents->GetContainerBounds().size());
 }