Re-enable tabs_interactive_uitest for linux_aura

chrome/test/base/interactive_test_utils.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 "chrome/test/base/interactive_test_utils.h"
 
 #include "build/build_config.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 
 namespace ui_test_utils {
 
 namespace {
 
 bool GetNativeWindow(const Browser* browser, gfx::NativeWindow* native_window) {
   BrowserWindow* window = browser->window();
   if (!window)
     return false;
 
   *native_window = window->GetNativeWindow();
   return *native_window;
 }
 
 }  // namespace
 
+void ActivateBrowserWindow(Browser* browser) {
+  ASSERT_TRUE(BringBrowserWindowToFront(browser));

[sky, 2016/11/15 03:47:00]

You should make ActivateBrowserWindow return a status and have callers
ASSERT_TRUE on it. Less mysterious failures that way.

[Qiang(Joe) Xu, 2016/11/15 16:25:30]

Yes, I agree. Done.

+  BrowserActivationWaiter waiter(browser);
+  waiter.WaitForActivation();
+}
+
 bool BringBrowserWindowToFront(const Browser* browser) {
   gfx::NativeWindow window = NULL;
   if (!GetNativeWindow(browser, &window))
     return false;
 
   return ui_test_utils::ShowAndFocusNativeWindow(window);
 }
 
 bool SendKeyPressSync(const Browser* browser,
                       ui::KeyboardCode key,
@@ skipping 82 matching lines @@
                const base::Closure& followup) {
   if (!followup.is_null())
     ui_controls::SendMouseEventsNotifyWhenDone(button, state, followup);
   else
     ui_controls::SendMouseEvents(button, state);
 }
 
 }  // namespace internal
 
 }  // namespace ui_test_utils