Moves ash content specific tests into ash_content_unittests

ash/test/ash_test_environment_content.h

Index: ash/test/ash_test_environment_content.h
diff --git a/ash/test/ash_test_environment_content.h b/ash/test/ash_test_environment_content.h
new file mode 100644
index 0000000000000000000000000000000000000000..eb6596fbca1bc2aae977c16146a1856423da5415
--- /dev/null
+++ b/ash/test/ash_test_environment_content.h
@@ -0,0 +1,60 @@
+// 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.
+
+#ifndef ASH_TEST_ASH_TEST_ENVIRONMENT_CONTENT_H_
+#define ASH_TEST_ASH_TEST_ENVIRONMENT_CONTENT_H_
+
+#include "ash/test/ash_test_environment.h"
+#include "base/macros.h"
+
+namespace content {
+class TestBrowserThreadBundle;
+}
+
+namespace ash {
+
+class ShellContentState;
+
+namespace test {
+
+class TestShellContentState;
+
+// AshTestEnvironment implementation for tests that use content.
+class AshTestEnvironmentContent : public AshTestEnvironment {
+ public:
+  AshTestEnvironmentContent();
+  ~AshTestEnvironmentContent() override;
+
+  TestShellContentState* test_shell_content_state() {
+    return test_shell_content_state_;
+  }
+  void set_content_state(ShellContentState* content_state) {
+    content_state_ = content_state;
+  }
+
+  // AshTestEnvironment:
+  void SetUp() override;
+  void TearDown() override;
+  base::SequencedWorkerPool* GetBlockingPool() override;
+  std::unique_ptr<views::ViewsDelegate> CreateViewsDelegate() override;
+
+ private:
+  std::unique_ptr<content::TestBrowserThreadBundle> thread_bundle_;
+
+  // An implementation of ShellContentState supplied by the user prior to
+  // SetUp().
+  ShellContentState* content_state_ = nullptr;
+
+  // If |content_state_| is not set prior to SetUp(), this value will be
+  // set to an instance of TestShellContentState created by this class. If
+  // |content_state_| is non-null, this will be nullptr.
+  TestShellContentState* test_shell_content_state_ = nullptr;
+
+  DISALLOW_COPY_AND_ASSIGN(AshTestEnvironmentContent);
+};
+
+}  // namespace test
+}  // namespace ash
+
+#endif  // ASH_TEST_ASH_TEST_ENVIRONMENT_CONTENT_H_