Updated Slider to raise drag started and ended events for touch gestures.

BUG=370181
Test=SliderTest.GesturesWithNoListener, SliderTest.TapGesture, SliderTest.ScrollGestureWithoutUpdate, SliderTest.ScrollGestureWithUpdate, SliderTest.ScrollGestureTransitionsToFling

Review URL: https://codereview.chromium.org/308003008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@277093 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 38 insertions, 0 deletions

diff --git a/ui/views/test/slider_test_api.h b/ui/views/test/slider_test_api.h
new file mode 100644
index 0000000..749ff4e
--- /dev/null
+++ b/ui/views/test/slider_test_api.h
@@ -0,0 +1,38 @@
+// 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.
+
+#ifndef UI_VIEWS_TEST_SLIDER_TEST_API_H_
+#define UI_VIEWS_TEST_SLIDER_TEST_API_H_
+
+#include "base/basictypes.h"
+
+namespace views {
+
+class Slider;
+class SliderListener;
+
+namespace test {
+
+// Can be used to update the private state of a views::Slider instance during a
+// test.  Updating the private state of an already created instance reduces
+// the amount of test setup and test fixture code required.
+class SliderTestApi {
+ public:
+  explicit SliderTestApi(Slider* slider);
+  virtual ~SliderTestApi();
+
+  // Set the SliderListener on the Slider.
+  void SetListener(SliderListener* listener);
+
+ private:
+  Slider* slider_;
+
+  DISALLOW_COPY_AND_ASSIGN(SliderTestApi);
+};
+
+}  // namespace test
+
+}  // namespace views
+
+#endif  // UI_VIEWS_TEST_SLIDER_TEST_API_H_