Add UMA metrics to measure the effectiveness of views fuzzing

chrome/browser/ui/views/touch_uma/touch_uma.h

Index: chrome/browser/ui/views/touch_uma/touch_uma.h
diff --git a/chrome/browser/ui/views/touch_uma/touch_uma.h b/chrome/browser/ui/views/touch_uma/touch_uma.h
new file mode 100644
index 0000000000000000000000000000000000000000..a6ca37826dc231b94ebe8002bcd2b160d2334bb2
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+++ b/chrome/browser/ui/views/touch_uma/touch_uma.h
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+// Copyright (c) 2013 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 CHROME_BROWSER_UI_VIEWS_TOUCH_UMA_TOUCH_UMA_H_
+#define CHROME_BROWSER_UI_VIEWS_TOUCH_UMA_TOUCH_UMA_H_
+
+#include "base/basictypes.h"
+
+class TouchUMA {
+ public:
+  enum GestureActionType {
+    GESTURE_TABSWITCH_TAP,
+    GESTURE_TABNOSWITCH_TAP,
+    GESTURE_TABCLOSE_TAP,
+    GESTURE_NEWTAB_TAP,
+    GESTURE_ROOTVIEWTOP_TAP,
+  };
+
+  static void RecordGestureAction(GestureActionType action);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(TouchUMA);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_TOUCH_UMA_TOUCH_UMA_H_