Fix MANUAL_Fail_NoProvider failure on all platforms.

chrome/test/media_router/media_router_integration_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 "chrome/test/media_router/media_router_integration_browsertest.h"
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/webui/media_router/media_router_dialog_controller_impl.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/ui_test_utils.h"
+#include "content/public/browser/render_frame_host.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/test_navigation_observer.h"
 #include "content/public/test/test_utils.h"
 #include "net/base/filename_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 
 namespace media_router {
 
 namespace {
@@ skipping 134 matching lines @@
   test_navigation_observer_->Wait();
   test_navigation_observer_->StopWatchingNewWebContents();
 }
 
 void MediaRouterIntegrationBrowserTest::ChooseSink(
     content::WebContents* web_contents,
     const std::string& sink_name) {
   content::WebContents* dialog_contents = GetMRDialog(web_contents);
   std::string script = base::StringPrintf(
       kChooseSinkScript, sink_name.c_str());
-  ASSERT_TRUE(content::ExecuteScript(dialog_contents, script));
+  // Execute javascript to choose sink, but don't wait until it finishes.
+  dialog_contents->GetMainFrame()->ExecuteJavaScriptWithUserGestureForTests(
+      base::UTF8ToUTF16(script));
 }
 
 void MediaRouterIntegrationBrowserTest::CheckStartFailed(
     content::WebContents* web_contents,
     const std::string& error_name,
     const std::string& error_message_substring) {
   std::string script(base::StringPrintf(kCheckStartFailedScript,
                                         error_name.c_str(),
                                         error_message_substring.c_str()));
   ExecuteJavaScriptAPI(web_contents, script);
@@ skipping 411 matching lines @@
 
   MediaRouterDialogControllerImpl* controller =
       MediaRouterDialogControllerImpl::GetOrCreateForWebContents(web_contents);
   EXPECT_TRUE(controller->IsShowingMediaRouterDialog());
   WaitUntilSinkDiscoveredOnUI();
   controller->HideMediaRouterDialog();
   CheckStartFailed(web_contents, "NotFoundError", "No screens found.");
 }
 
 }  // namespace media_router