Disable (temporarily) WebView browsertests on Mac.

chrome/browser/ui/webui/webui_webview_browsertest.cc

 // Copyright 2015 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/macros.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/renderer_context_menu/render_view_context_menu_test_util.h"
 #include "chrome/browser/signin/signin_promo.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "chrome/test/base/web_ui_browser_test.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/public/common/drop_data.h"
 #include "content/public/test/browser_test_utils.h"
 #include "extensions/test/extension_test_message_listener.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 
+#if !defined(OS_MACOSX)

[Lei Zhang, 2016/10/12 22:42:06]

Can you reference the bug?

+
 #if !defined(OS_CHROMEOS) && defined(USE_AURA)
 #include "ui/aura/window.h"
 
 namespace {
 
 class WebUIMessageListener : public base::SupportsWeakPtr<WebUIMessageListener>{
  public:
   WebUIMessageListener(content::WebUI* web_ui, const std::string& message)
       : message_loop_(new content::MessageLoopRunner) {
     web_ui->RegisterMessageCallback(
@@ skipping 307 matching lines @@
     WebUIMessageListener listener(embedder_web_contents->GetWebUI(),
                                   "Step3: destNode gets drop");
     render_view_host->DragTargetDrop(dropdata, client_pt, screen_pt, 0);
     ASSERT_TRUE(listener.Wait());
     // Confirm no navigation
     EXPECT_FALSE(observer.Navigated());
     EXPECT_EQ(GetWebViewEnabledWebUIURL(), embedder_web_contents->GetURL());
   }
 }
 #endif
+
+#endif  // !defined(OS_MACOSX)