Moves ash content specific tests into ash_content_unittests

ash/test/ash_test_environment_content.cc

+// Copyright 2016 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 "ash/test/ash_test_environment_content.h"
+
+#include "ash/test/ash_test_views_delegate.h"
+#include "ash/test/content/test_shell_content_state.h"
+#include "base/memory/ptr_util.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "content/public/test/web_contents_tester.h"
+
+namespace ash {
+namespace test {
+namespace {
+
+class AshTestViewsDelegateContent : public AshTestViewsDelegate {
+ public:
+  AshTestViewsDelegateContent() {}
+  ~AshTestViewsDelegateContent() override {}
+
+  // AshTestViewsDelegate:
+  content::WebContents* CreateWebContents(
+      content::BrowserContext* browser_context,
+      content::SiteInstance* site_instance) override {
+    return content::WebContentsTester::CreateTestWebContents(browser_context,
+                                                             site_instance);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AshTestViewsDelegateContent);
+};
+
+}  // namespace
+
+// static
+std::unique_ptr<AshTestEnvironment> AshTestEnvironment::Create() {
+  return base::MakeUnique<AshTestEnvironmentContent>();
+}
+
+AshTestEnvironmentContent::AshTestEnvironmentContent()
+    : thread_bundle_(base::MakeUnique<content::TestBrowserThreadBundle>()) {}
+
+AshTestEnvironmentContent::~AshTestEnvironmentContent() {}
+
+void AshTestEnvironmentContent::SetUp() {
+  ShellContentState* content_state = content_state_;
+  if (!content_state) {
+    test_shell_content_state_ = new TestShellContentState;
+    content_state = test_shell_content_state_;
+  }
+  ShellContentState::SetInstance(content_state);
+}
+
+void AshTestEnvironmentContent::TearDown() {
+  ShellContentState::DestroyInstance();
+}
+
+base::SequencedWorkerPool* AshTestEnvironmentContent::GetBlockingPool() {
+  return content::BrowserThread::GetBlockingPool();
+}
+
+std::unique_ptr<views::ViewsDelegate>
+AshTestEnvironmentContent::CreateViewsDelegate() {
+  return base::MakeUnique<AshTestViewsDelegateContent>();
+}
+
+}  // namespace test
+}  // namespace ash