Add create note palette action.

ash/common/test/test_palette_delegate.h

Index: ash/common/test/test_palette_delegate.h
diff --git a/ash/common/test/test_palette_delegate.h b/ash/common/test/test_palette_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..896232dace046c6f92de817729d14e3454815b0f
--- /dev/null
+++ b/ash/common/test/test_palette_delegate.h
@@ -0,0 +1,39 @@
+// 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_COMMON_TEST_TEST_PALETTE_DELEGATE_H_
+#define ASH_COMMON_TEST_TEST_PALETTE_DELEGATE_H_
+
+#include "ash/common/palette_delegate.h"
+#include "base/macros.h"
+
+namespace ash {
+
+// A simple test double for a PaletteDelegate.
+class TestPaletteDelegate : public PaletteDelegate {
+ public:
+  TestPaletteDelegate();
+  ~TestPaletteDelegate() override;
+
+  int create_note_count() const { return create_note_count_; }
+
+  int has_note_app_count() const { return has_note_app_count_; }
+
+  void set_has_note_app(bool has_note_app) { has_note_app_ = has_note_app; }
+
+ private:
+  // PaletteDelegate:
+  void CreateNote() override;
+  bool HasNoteApp() override;
+
+  bool has_note_app_ = false;
+  int create_note_count_ = 0;
+  int has_note_app_count_ = 0;
+
+  DISALLOW_COPY_AND_ASSIGN(TestPaletteDelegate);
+};
+
+}  // namespace ash
+
+#endif  // ASH_COMMON_TEST_TEST_PALETTE_DELEGATE_H_