Remove user gesture tracking

sky/engine/platform/UserGestureIndicator.h

Index: sky/engine/platform/UserGestureIndicator.h
diff --git a/sky/engine/platform/UserGestureIndicator.h b/sky/engine/platform/UserGestureIndicator.h
deleted file mode 100644
index a07533a9e23bef04f2c22737e6fb72aee2a0cdf3..0000000000000000000000000000000000000000
--- a/sky/engine/platform/UserGestureIndicator.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2010 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef SKY_ENGINE_PLATFORM_USERGESTUREINDICATOR_H_
-#define SKY_ENGINE_PLATFORM_USERGESTUREINDICATOR_H_
-
-#include "sky/engine/platform/PlatformExport.h"
-#include "sky/engine/wtf/Noncopyable.h"
-#include "sky/engine/wtf/RefCounted.h"
-#include "sky/engine/wtf/RefPtr.h"
-
-namespace blink {
-
-class UserGestureIndicator;
-
-enum ProcessingUserGestureState {
-    DefinitelyProcessingNewUserGesture,
-    DefinitelyProcessingUserGesture,
-    PossiblyProcessingUserGesture,
-    DefinitelyNotProcessingUserGesture
-};
-
-class PLATFORM_EXPORT UserGestureToken : public RefCounted<UserGestureToken> {
-public:
-    virtual ~UserGestureToken() { }
-    virtual bool hasGestures() const = 0;
-    virtual void setOutOfProcess() = 0;
-    virtual void setJavascriptPrompt() = 0;
-};
-
-class PLATFORM_EXPORT UserGestureIndicatorDisabler {
-    WTF_MAKE_NONCOPYABLE(UserGestureIndicatorDisabler);
-public:
-    UserGestureIndicatorDisabler();
-    ~UserGestureIndicatorDisabler();
-
-private:
-    ProcessingUserGestureState m_savedState;
-    UserGestureIndicator* m_savedIndicator;
-};
-
-class PLATFORM_EXPORT UserGestureIndicator {
-    WTF_MAKE_NONCOPYABLE(UserGestureIndicator);
-    friend class UserGestureIndicatorDisabler;
-public:
-    static bool processingUserGesture();
-    static bool consumeUserGesture();
-    static UserGestureToken* currentToken();
-    static void clearProcessedUserGestureSinceLoad();
-    static bool processedUserGestureSinceLoad();
-
-    explicit UserGestureIndicator(ProcessingUserGestureState);
-    explicit UserGestureIndicator(PassRefPtr<UserGestureToken>);
-    ~UserGestureIndicator();
-
-
-private:
-    static ProcessingUserGestureState s_state;
-    static UserGestureIndicator* s_topmostIndicator;
-    static bool s_processedUserGestureSinceLoad;
-    ProcessingUserGestureState m_previousState;
-    RefPtr<UserGestureToken> m_token;
-};
-
-}
-
-#endif  // SKY_ENGINE_PLATFORM_USERGESTUREINDICATOR_H_