MacViews: Split ViewEventTestBase into platform-specific files.

chrome/test/base/chrome_views_test_helper_aura.cc

+// Copyright 2014 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/chrome_views_test_helper.h"
+
+#include "ui/aura/test/aura_test_helper.h"
+#include "ui/wm/core/default_activation_client.h"
+#include "ui/wm/core/wm_state.h"
+
+namespace {
+
+// ChromeViewsTestHelper implementation for non-Ash Aura environments.
+// (use_ash=0, use_aura=1).
+class ChromeViewsTestHelperAura : public ChromeViewsTestHelper {

[tapted, 2014/08/05 14:00:26]

This is the black sheep of the family.. I don't think there's bot coverage for
this. I checked this file compiles on linux, but chrome itself doesn't compile
with `aura && !ash`, so I'm not sure we want to keep this file at all.

[sky, 2014/08/06 17:37:44]

Maybe check the ozone build? If that doesn't use it, then go ahead and nuke the
file. No sense in checking a file that won't be built and is just going to get
stale.

[tapted, 2014/08/11 12:04:17]

Nuked. I think the ozone bot we most care about (linux_ecs_ozone) would be more
correctly be called embedded/chromecast bots -- they are aura, but not
toolkit-views, so none of this is hit (view_event_test_base.cc gyp-def'd out).

There are some freshly appearing chromeos_ozone bots which I tried out, but
interactive_ui_tests has never passed there (and they'll get the chromeos
version anyway).

+ public:
+  ChromeViewsTestHelperAura() {}
+
+  // Overridden from ChromeViewsTestHelper:
+  virtual gfx::NativeWindow PlatformSetUp(
+      ui::ContextFactory* context_factory) OVERRIDE;
+  virtual void PlatformTearDown() OVERRIDE;
+
+ private:
+  scoped_ptr<aura::test::AuraTestHelper> aura_test_helper_;
+  wm::WMState wm_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeViewsTestHelperAura);
+};
+
+gfx::NativeWindow ChromeViewsTestHelperAura::PlatformSetUp(
+    ui::ContextFactory* context_factory) {
+  // Instead of using the ash shell, use an AuraTestHelper to create and manage
+  // the test screen.
+  aura_test_helper_.reset(
+      new aura::test::AuraTestHelper(base::MessageLoopForUI::current()));
+  aura_test_helper_->SetUp(context_factory);
+  new wm::DefaultActivationClient(aura_test_helper_->root_window());
+  return aura_test_helper_->root_window();
+}
+
+void ChromeViewsTestHelperAura::PlatformTearDown() {
+  aura_test_helper_->TearDown();
+}
+
+}  // namespace
+
+// static
+ChromeViewsTestHelper* ChromeViewsTestHelper::Create() {
+  return new ChromeViewsTestHelperAura();
+}